I. INTRODUCTION II. FABRICATION AND OPERATION OF SLM FIBER LASER
|
|
- Joel Nash
- 5 years ago
- Views:
Transcription
1 JOURNAL OF LIGHTWAVE TECHNOLOGY, VOL. 27, NO. 20, OCTOBER 15, Dual-Wavelength Single-Longitudinal-Mode Polarization-Maintaining Fiber Laser and Its Application in Microwave Generation Weisheng Liu, Meng Jiang, Daru Chen, and Sailing He, Senior Member, IEEE Abstract A novel approach for generating high-frequency microwave signals is proposed and experimentally demonstrated. With a pair of wavelength matched fiber Bragg gratings written directly in a polarization-maintaining erbium-doped fiber, a stable short cavity dual-wavelength single-longitudinal-mode (DW-SLM) distributed-bragg-reflector fiber laser with orthogonal oscillation modes is realized at room temperature. The wavelength spacing between the two lasing modes is nm. By heterodyning the two wavelengths of the DW-SLM fiber laser at a photodetector, microwave signal at over 46 GHz is achieved. Index Terms Fiber laser, microwave generation, polarizationmaintaining, single-longitudinal-mode. I. INTRODUCTION P HOTONIC generation of microwave signals has attracted much research interest due to their great application potentials on radio-over-fiber networks, broadband wireless access, radar, sensor networks and so on [1] [4]. Compared with electronic solutions, photonic generation of microwave has a lot of advantages such as free of speed limitations (caused by electronic elements), low power consumption, low cost and high reliability [5]. Several techniques have been developed to meet this challenge and optical heterodyning has been considered to be an effective and promising approach for photonic generation of microwave signals. One of the optical heterodyning techniques is to beat two laser beams from two different laser sources at a photodetector (PD). The main advantage of this approach is that the wavelength and power are easy to control since the two laser sources are independent. However, in order to generate high Manuscript received December 14, 2008; revised April 22, First published June 02, 2009; current version published August 28, This work was supported in part by the National Natural Science Foundation of China (Grant ) and in part by the Science and Technology Department of Zhejiang Province of China (Grant 2007C21159). W. Liu and M. Jiang are with the Centre for Optical and Electromagnetic Research, Zhejiang University, Hangzhou, , China ( wsliu@coer. zju.edu.cn; jiangmeng@coer.zju.edu.cn). D. Chen is with the Centre for Optical and Electromagnetic Research, Zhejiang University, Hangzhou, , China, and also with the Joint Research Laboratory of Optics of Zhejiang Normal University and Zhejiang University ( daru@coer.zju.edu.cn). S. He is with the Centre for Optical and Electromagnetic Research, Zhejiang University, Hangzhou, , China, and also with the Division of Electromagnetic Engineering, School of Electrical Engineering, Royal Institute of Technology, S Stockholm, Sweden. ( sailing@kth.se). Color versions of one or more of the figures in this paper are available online at Digital Object Identifier /JLT quality microwave signals with low phase noise and high stability, the phases of the two laser sources must be locked [6], [7] which is difficulty to realize in many applications. Another optical heterodyning technique for photonic generation of microwave signals is beating of a dual-wavelength single-longitudinal-mode (DW-SLM) fiber laser. With this approach, the two beating laser modes share a common cavity and gain medium, so that most noise processes which are originated with the same laser cavity and gain can be canceled out. To realized SLM oscillation, ultra-narrow filter ( ) is usually required. Chen et al. developed an ultra-narrow bandpass filter with two transmission peaks using an equivalent phase-shifted fiber Bragg grating (FBG) [8], [9]. Another ultra-narrow filter based on high finesse Fabry-Perot etalon formed by FBG pair has also been used in SLM laser and microwave signals generation recently [10], [11]. However, these ultra-narrow bandpass filters must be specially designed and difficult to fabricate especially for generating microwave signals with frequency higher than 40 GHz. In addition, because of strong homogeneous broadening in the erbium-doped fiber (EDF), these schemes do not work stably for DW-SLM oscillation at room temperature. Hence, a semiconductor optical amplifier is usually needed. In this paper, we proposed and demonstrated a DW-SLM distributed-bragg-reflector (DBR) fiber laser with orthogonal linear polarizations by using polarization-maintaining erbiumdoped fiber (PM-EDF). Due to the polarization hole burning (PHB) effect and spatial-hole burning (SHB) effect, stable DW oscillation with wavelength spacing of nm at room temperature is achieved. By beating the two wavelengths of the laser at a PD, microwave signals at a frequency of more than 46 GHz can be generated, which is measured by an electrical spectrum analyzer (ESA) with a measurement range up to GHz through frequency up/down conversion technique. The optical signal-to-noise ratio (OSNR) of the DW-SLM fiber laser and the signal-to-noise ratio (SNR) of the generated microwave signal are db and over 35 db, respectively. Additionally, the reflectivity of each polarization mode of the PM-FBG is exactly measured for the first time with a homemade linear-polarized light source in this paper. II. FABRICATION AND OPERATION OF SLM FIBER LASER The cavity of the DW-SLM fiber laser proposed consists of a pair of wavelength matched FBGs written on a segment of PM-EDF with high erbium concentration (with a peak absorption of 55 db/m at 1530 nm), as shown in Fig /$ IEEE
2 4456 JOURNAL OF LIGHTWAVE TECHNOLOGY, VOL. 27, NO. 20, OCTOBER 15, 2009 Fig. 1. Configuration of the DW-SLM distributed-bragg-reflector fiber laser. WDM is wavelength division multiplexer; SMF is single mode fiber. The Bragg wavelength of the FBG is (1) where is the effective index of the fiber core, is the period of the FBG. Since the refractive indexes along the fast and slow axes of the polarization-maintaining fiber (PMF) are different, an FBG written on a PMF exhibits two reflection peaks with orthogonal polarization modes. The Bragg wavelength difference between the two polarization modes of the PM-FBG is where ( are the modal refractive indexes) is the birefringence of the PMF, is the period of the PM-FBG. As shown in Fig. 1, two PM-FBGs as well as the PM-EDF between them composes the laser cavity. The length, peak reflectivity, 3 db bandwidth of PM-FBG1 is 12 mm,, and for both polarization modes, while 8 mm, and for both polarization modes of PM-FBG2, respectively. The interval between the two PM-FBGs is 10 mm. The PM-FBGs here act both as cavity mirrors and mode discriminators introducing different losses (by different reflectivity) to different modes within the same polarization state. By presetting the reflectivity and bandwidth of the PM-FBGs and the cavity length of the laser, only the dominant mode is allowed to operate above the lasing threshold [12]. Since the two lasing wavelengths corresponding to the two Bragg wavelengths are in two linearly orthogonal polarization modes, the PHB effect is enhanced in the cavity [13]. In addition, the round-trip loss of the short linear cavity is relatively low, so a well-defined standing wave will be formed between the two PM-FBGs and thus SHB occurs [14]. The combination of PHB and SHB effects will reduce the homogeneous linewidth of the EDF and suppress the competition between different modes. Therefore, stable DW oscillation with orthogonal polarization modes can be achieved at room temperature. In our experiment, the FBGs are fabricated by using a KrF excimer laser (TuiLaser Ltd., Germany) with a phase-mask grating-writing technique. A phase mask with a pitch of nm is employed to achieve a grating period of nm. And the PM-EDF we use is panda-style with a birefringence of the. The transmission spectra of PM-FBG2 measured by an optical spectrum analyzer (OSA, ANDO 6317) with 0.01 nm resolution are shown in Fig. 2. When seeded with an un-polarized amplified spontaneous emission (ASE) source, two transmission notches both with depth of about db (i.e., 50% of (2) Fig. 2. Measured transmission spectra of PM-FBG2 when it is illuminated by an un-polarized ASE source (solid line), and by a homemade linear-polarized source with polarization state along fast axis (dot line) and slow axis (dash line) of the PM-EDF, respectively. the seeded light is reflected at the Bragg wavelengths) are observed from the OSA. And then we use a homemade linear-polarized light source with tunable polarization state to illuminate the PM-FBG. When the polarization state of the light source is along the fast axis of the PMF, a single transmission notch presents at nm with a peak depth of db (i.e., with a calculated reflectivity of 98.6%). A transmission notch at nm with a peak depth of db (i.e., with a calculated reflectivity of 98.7%) exhibits when the polarization state of the incident light is tuned to be along the slow axis of the PMF. The wavelength difference between the two orthogonal modes is nm which is accordant very well with the calculated result of (2). The DW-SLM fiber laser is pumped by a 980 nm laser diode through a 980/1550 nm wavelength division multiplexer (WDM). Fig. 3 shows the spectra of the dual wavelength laser out. The two orthogonal lasing wavelengths are measured to be nm and nm with a wavelength spacing of nm. And the OSNR is measured to be nearly 50 db. The output power of the DW-SLM fiber laser is 0.8 mw. When the output of the laser is injected to a PD (Anritsu MN4765A) with a bandwidth of 65 GHz which is cascaded by an ESA (Agilent E4440A) with a measurement range from 3 Hz to 26.5 GHz, there is no beating signal observed from the ESA within its whole range (as shown in the insert of Fig. 3) which indicates that the DW laser is in a SLM operation, noticing that the effective cavity length of our laser is 2 cm, and the corresponding longitudinal-mode spacing is GHz. III. MICROWAVE GENERATION If the two wavelengths of the DW-SLM fiber are turned to be with the same polarization state through a polarizer, by beating the two wavelengths at a PD, microwave signal can be generated, and the beat frequency can be expressed as where is the mean of the lasing wavelengths. (3)
3 LIU et al.: DUAL-WAVELENGTH SINGLE-LONGITUDINAL-MODE POLARIZATION-MAINTAINING FIBER LASER 4457 Fig. 3. Spectra of the dual-wavelength fiber laser. The insert shows the electrical spectrum observed at the output of the photodetector which indicates the laser is in single-longitudinal-mode operation. As introduced in Section II, the wavelength spacing of our DW-SLM fiber laser is nm. Thus, if we beat the two wavelengths at a PD, the frequency of the generated microwave signal will be over 46 GHz, which is out of the measurement range (up to 26.5 GHz) of the ESA we use. Here we detect the generated microwave signal by employing a frequency up/down conversion technique. The schematic configuration of the microwave frequency up/down conversion system is shown in Fig. 4. After amplified by an erbium doped fiber amplifier (EDFA), the output light of the DW-SLM laser is modulated in an optical intensity modulator (IM) which is driven by an analog signal generator (ASG, Agilent E8257D) with a frequency of. The IM here also acts as a polarizer because of its polarization relative characteristic. The modulated light is divided into two split through a 90 : 10 coupler. One part is monitored by an OSA, and the other is injected into the PD which is cascaded by the ESA. The output field of the IM can be expressed as [15] where is the normalized driving voltage of the IM, is the normalized voltage bias point and is the lasing frequency of the DW-SLM fiber laser. Here, and denote the two orthogonal polarizations of the lasing modes of the DW-SLM fiber laser. The Bessel function expansion of (4) is From (5) we can find that when, even order sidebands will be suppressed. Considering the higher order sidebands are relatively small, the -order sidebands will be dominant. Because of the polarization relative characteristic of the IM, (4) (5) Fig. 4. Experiment setup of the microwave generation and frequency up/down conversion system: ISO is isolator; EDFA is erbium doped fiber amplifier; PC is polarization controller; ASG is analog signal generator; IM is intensity modulator; C is coupler; PD is photodetector; OSA is optical spectrum analyzer; ESA is electrical spectrum analyzer. and cannot be achieved simultaneously, and, thus, the fundamental modes of the two lasing polarizations cannot be totally suppressed at the same time. However, by carefully adjusting the polarization controller (PC) and the driving voltage bias point of the IM, both polarization modes can be modulated with high efficiency. By heterodyning the modulated light at the PD, several new microwave signals can be generated including one at frequency [16], where is the frequency of the microwave signal generated by beating the two original wavelengths of the DW-SLM laser before modulating. When is set to a suitable value, can be deduced by measuring which is much lower than. Thus, we can measure a microwave of higher than 46 GHz by using the ESA with a limited measurement range When the output frequency of the ASG is set to Hz, we can see the optical spectrum after the IM monitored by the OSA is similar to the original spectrum of the DW-SLM fiber laser which is shown in Fig. 3. And there is no beating signal observed from the ESA. Then we tune the output frequency of the ASG up to GHz, and -order sidebands of the two fundamental frequencies of the DW-SLM fiber laser are generated. By carefully adjusting the PC and the driving voltage bias point of the IM, both polarization modes can be modulated with high efficiency and the power of the -order sidebands are nearly at the same level as the 0-order (see Fig. 5). Fig. 6 shows the microwave signals measured by the ESA. As shown in Fig. 6(a), within the whole measurement range of the ESA, three signals at GHz ( ), GHz ( ) and GHz ( ) are observed as expected. Fig. 6 (b) shows the detail of the microwave signal which is at a frequency of Hz. The SNR of is over 35 db, and the db bandwidth is which indicates that line width of each laser line in the DW-SLM is less than 50 khz. The phase noise of the generated microwave signal is measured to be dbc/hz at 1 MHz by using the ESA. The frequency drift is observed to be MHz within 15 minutes in the free-running mode at room temperature. Thus, we can deduce the frequency of the original microwave signal generated by beating two wavelengths of the proposed DW-SLM laser is
4 4458 JOURNAL OF LIGHTWAVE TECHNOLOGY, VOL. 27, NO. 20, OCTOBER 15, 2009 IV. CONCLUSION We have proposed and demonstrated a novel DW-SLM fiber laser with orthogonal linear polarizations at room temperature. By beating the two wavelengths of the laser, microwave signal at frequency as high as GHz (determined by the wavelength spacing of the DW-SLM fiber laser) has been generated. By employing a frequency up/down conversion technique, the frequency of the microwave signal is converted down to GHz and measured by a 26.5 GHz ESA. The frequency of the microwave signal can be designed by writing the grating into PM fiber with proper birefringence. The birefringence of the PMF is sensitive to the lateral pressure, which indicates that the frequency of the microwave signal can be tuned by staving the short laser cavity. And this makes it potential to be a high sensitivity pressure sensor. Fig. 5. Spectrum of the dual-wavelength fiber laser output after modulated by a 10.5 GHz microwave signal. 61-order sidebands of the two fundamental lasing frequencies can be observed obviously. ACKNOWLEDGMENT The authors would like to thank Dr. H. Y. Ou and Y. Gao for their helpful discussion. Fig. 6. Electrical spectra of the beating signals observed at the output of the photodetecter (a) with a span of 26.5 GHz and (b) the detail of the microwave signal at GHz with a span of 3.5 MHz. GHz, which is accordant very well with the calculated result from (3). REFERENCES [1] A. J. Seeds and K. J. Williams, Microwave photonics, J. Lightw. Technol., vol. 24, pp , [2] J. Capmany and D. Novak, Microwave photonics combines two worlds, Nature Photon., vol. 1, pp , Jun [3] R. C. Williamson, RF Photonics, J. Lightw. Technol., vol. 26, pp , [4] P. O. Hedekvist, B. E. Olsson, and A. Wiberg, Microwave harmonic frequency generation utilizing the properties of an optical phase modulator, J. Lightw. Technol., vol. 22, pp , [5] S. Baunel, O. Brox, J. Kreissl, G. Sahin, and B. Sartorius, Optical microwave source, Electron. Lett., vol. 38, pp , [6] J. Genest, M. Chamberland, P. Tremblay, and M. Tetu, Microwave signals generated by optical heterodyne between injection-locked semiconductor lasers, IEEE J. Quant. Electron., vol. 33, pp , [7] Z. Fan and M. Dagenais, Optical generation of a megahertz-linewidth microwave signal using semiconductor lasers and a discriminator-aided phase-locked loop, IEEE Trans. Microw. Theory Tech., vol. 45, no. 8, pp , Aug [8] X. Chen, J. Yao, and Z. Deng, Ultra-narrow dual-transmission-band fiber Bragg grating filter and its application in a dual-wavelength single-longitudinal-mode fiber ring laser, Opt. Lett., vol. 30, pp , [9] X. Chen, Z. Deng, and J. Yao, Photonic generation of microwave signal using a dual-wavelength single-longitudinal-mode fiber ring laser, IEEE Trans. Microw. Theory Tech., vol. 54, pp , [10] X. P. Cheng, P. Shum, C. H. Tse, J. L. Zhou, M. Tang, W. C. Tan, R. F. Wu, and J. Zhang, Single-longitudinal-mode erbium-doped fiber ring laser based on high finesse fiber Bragg grating Fabry-Perot etalon, IEEE Photon. Technol. Lett., vol. 20, pp , [11] J. L. Zhou, L. Xia, X. P. Cheng, X. P. Dong, and P. Shum, Photonic generation of tunable microwave signals by beating a dual-wavelength single longitudinal mode fiber ring laser, Appl. Phys. B, vol. 91, pp , [12] G. A. Ball, W. H. Glenn, W. W. Morey, and P. K. Chan, Modeling of short, single frequency, fiber lasers in high-gain fiber, IEEE Photon. Technol. Lett., vol. 5, pp , [13] J. Sun, J. Qiu, and D. Huang, Multiwavelength erbium-doped fiber lasers exploiting polarization hole burning, Opt. Commun., vol. 182, pp , [14] J. J. Zayhowski, Limits imposed by spatial hole burning on the singlemode operation of standing-wave laser cavities, Opt. Lett., vol. 15, pp , [15] J. J. O Reilly, P. M. Lane, R. Heidemann, and R. Hofstetter, Optical generation of very narrowlinewidth millimetrewave signals, Electron. Lett., vol. 28, pp , [16] J. Sun, Y. T. Dai, X. F. Chen, Y. J. Zhang, and S. Z. Xie, Stable dual-wavelength DFB fiber laser with separate resonant cavities and its application in tunable microwave generation, IEEE Photon. Technol. Lett., vol. 18, pp , 2006.
5 LIU et al.: DUAL-WAVELENGTH SINGLE-LONGITUDINAL-MODE POLARIZATION-MAINTAINING FIBER LASER 4459 Weisheng Liu was born in Hebei, China, in He received the B.S. degree from Zhejiang University in He is currently pursuing the Ph.D. degree at the Centre for Optical and Electromagnetic Research, Zhejiang University. His research interests include fiber gratings, fiber optic sensors, and microwave photonics. Daru Chen was born in Wenzhou, China, in He received the B.S. degree from Zhejiang University, Hangzhou, China, in He is currently pursuing the Ph.D. degree at the Centre for Optical and Electromagnetic Research, Zhejiang University. He has authored/coauthored over 30 papers in refereed international journals. His current research interests include fiber lasers, fiber sensors, and photonic crystal fibers. Meng Jiang was born in Liaoning, China, in She received the B.S. degree with honors in optical engineering from Zhejiang University in She is currently pursuing the Ph.D. degree at the Center for Optical and Electromagnetic Research, Zhejiang University, China. Her main interests of research include fiber grating, fiber optical communications, and fiber sensors. Sailing He (M 92 SM 98) received the Licentiate of Technology and Ph.D. degrees from the Royal Institute of Technology, Stockholm, Sweden, in 1991 and 1992, respectively. After receiving the Ph.D. degree, he worked at the Royal Institute of Technology as an Assistant Professor, as an Associate Professor, and as a Full Professor. He has been with Zhejiang University, Hangzhou, China, since the time he was appointed by the Ministry of Education of China. He authored one monograph (Oxford University Press) and authored/coauthored over 300 papers in refereed international journals. His current research interests include photonic integration, fiber optical communication, optical sensing technologies, and microwave photonics.
OPTICAL generation of microwave and millimeter-wave
804 IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, VOL. 54, NO. 2, FEBRUARY 2006 Photonic Generation of Microwave Signal Using a Dual-Wavelength Single-Longitudinal-Mode Fiber Ring Laser Xiangfei
More informationMultiwavelength Single-Longitudinal-Mode Ytterbium-Doped Fiber Laser. Citation IEEE Photon. Technol. Lett., 2013, v. 25, p.
Title Multiwavelength Single-Longitudinal-Mode Ytterbium-Doped Fiber Laser Author(s) ZHOU, Y; Chui, PC; Wong, KKY Citation IEEE Photon. Technol. Lett., 2013, v. 25, p. 385-388 Issued Date 2013 URL http://hdl.handle.net/10722/189009
More informationStable dual-wavelength oscillation of an erbium-doped fiber ring laser at room temperature
Stable dual-wavelength oscillation of an erbium-doped fiber ring laser at room temperature Donghui Zhao.a, Xuewen Shu b, Wei Zhang b, Yicheng Lai a, Lin Zhang a, Ian Bennion a a Photonics Research Group,
More informationMicrowave Photonics: Photonic Generation of Microwave and Millimeter-wave Signals
16 Microwave Photonics: Photonic Generation of Microwave and Millimeter-wave Signals Jianping Yao Microwave Photonics Research Laboratory School of Information Technology and Engineering University of
More informationA tunable and switchable single-longitudinalmode dual-wavelength fiber laser with a simple linear cavity
A tunable and switchable single-longitudinalmode dual-wavelength fiber laser with a simple linear cavity Xiaoying He, 1 Xia Fang, 1 Changrui Liao, 1 D. N. Wang, 1,* and Junqiang Sun 2 1 Department of Electrical
More informationPhotonic Generation of Millimeter-Wave Signals With Tunable Phase Shift
Photonic Generation of Millimeter-Wave Signals With Tunable Phase Shift Volume 4, Number 3, June 2012 Weifeng Zhang, Student Member, IEEE Jianping Yao, Fellow, IEEE DOI: 10.1109/JPHOT.2012.2199481 1943-0655/$31.00
More informationA broadband fiber ring laser technique with stable and tunable signal-frequency operation
A broadband fiber ring laser technique with stable and tunable signal-frequency operation Chien-Hung Yeh 1 and Sien Chi 2, 3 1 Transmission System Department, Computer & Communications Research Laboratories,
More informationStabilisation of Linear-cavity Fibre Laser Using a Saturable Absorber
Edith Cowan University Research Online ECU Publications 2011 2011 Stabilisation of Linear-cavity Fibre Laser Using a Saturable Absorber David Michel Edith Cowan University Feng Xiao Edith Cowan University
More informationOPTICAL generation and distribution of millimeter-wave
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, VOL. 54, NO. 2, FEBRUARY 2006 763 Photonic Generation of Microwave Signal Using a Rational Harmonic Mode-Locked Fiber Ring Laser Zhichao Deng and Jianping
More informationMulti-wavelength laser generation with Bismuthbased Erbium-doped fiber
Multi-wavelength laser generation with Bismuthbased Erbium-doped fiber H. Ahmad 1, S. Shahi 1 and S. W. Harun 1,2* 1 Photonics Research Center, University of Malaya, 50603 Kuala Lumpur, Malaysia 2 Department
More informationSingle mode EDF fiber laser using an ultra-narrow bandwidth tunable optical filter
Indian Journal of Pure & Applied Physics Vol. 53, September 2015, pp. 579-584 Single mode EDF fiber laser using an ultra-narrow bandwidth tunable optical filter N F Razak* 1, H Ahmad 2, M Z Zulkifli 2,
More informationSingle-longitudinal mode laser structure based on a very narrow filtering technique
Single-longitudinal mode laser structure based on a very narrow filtering technique L. Rodríguez-Cobo, 1,* M. A. Quintela, 1 S. Rota-Rodrigo, 2 M. López-Amo 2 and J. M. López-Higuera 1 1 Photonics Engineering
More informationStudy of Multiwavelength Fiber Laser in a Highly Nonlinear Fiber
Study of Multiwavelength Fiber Laser in a Highly Nonlinear Fiber I. H. M. Nadzar 1 and N. A.Awang 1* 1 Faculty of Science, Technology and Human Development, Universiti Tun Hussein Onn Malaysia, Johor,
More informationS-band gain-clamped grating-based erbiumdoped fiber amplifier by forward optical feedback technique
S-band gain-clamped grating-based erbiumdoped fiber amplifier by forward optical feedback technique Chien-Hung Yeh 1, *, Ming-Ching Lin 3, Ting-Tsan Huang 2, Kuei-Chu Hsu 2 Cheng-Hao Ko 2, and Sien Chi
More informationOptical phase-locked loop for coherent transmission over 500 km using heterodyne detection with fiber lasers
Optical phase-locked loop for coherent transmission over 500 km using heterodyne detection with fiber lasers Keisuke Kasai a), Jumpei Hongo, Masato Yoshida, and Masataka Nakazawa Research Institute of
More informationMICROWAVE photonics is an interdisciplinary area
314 JOURNAL OF LIGHTWAVE TECHNOLOGY, VOL. 27, NO. 3, FEBRUARY 1, 2009 Microwave Photonics Jianping Yao, Senior Member, IEEE, Member, OSA (Invited Tutorial) Abstract Broadband and low loss capability of
More informationCost-effective wavelength-tunable fiber laser using self-seeding Fabry-Perot laser diode
Cost-effective wavelength-tunable fiber laser using self-seeding Fabry-Perot laser diode Chien Hung Yeh, 1* Fu Yuan Shih, 2 Chia Hsuan Wang, 3 Chi Wai Chow, 3 and Sien Chi 2, 3 1 Information and Communications
More informationCONTROLLABLE WAVELENGTH CHANNELS FOR MULTIWAVELENGTH BRILLOUIN BISMUTH/ERBIUM BAS-ED FIBER LASER
Progress In Electromagnetics Research Letters, Vol. 9, 9 18, 29 CONTROLLABLE WAVELENGTH CHANNELS FOR MULTIWAVELENGTH BRILLOUIN BISMUTH/ERBIUM BAS-ED FIBER LASER H. Ahmad, M. Z. Zulkifli, S. F. Norizan,
More informationOptical fiber-fault surveillance for passive optical networks in S-band operation window
Optical fiber-fault surveillance for passive optical networks in S-band operation window Chien-Hung Yeh 1 and Sien Chi 2,3 1 Transmission System Department, Computer and Communications Research Laboratories,
More informationFIBER OPTICAL PARAMETRIC OSCILLATOR WITH SWITCHABLE AND WAVELENGTH-SPACING TUN- ABLE MULTI-WAVELENGTH
Progress In Electromagnetics Research Letters, Vol. 19, 83 92, 21 FIBER OPTICAL PARAMETRIC OSCILLATOR WITH SWITCHABLE AND WAVELENGTH-SPACING TUN- ABLE MULTI-WAVELENGTH B. Sun Centre for Optical and Electromagnetic
More informationSingle-Frequency, 2-cm, Yb-Doped Silica-Fiber Laser
Single-Frequency, 2-cm, Yb-Doped Silica-Fiber Laser W. Guan and J. R. Marciante University of Rochester Laboratory for Laser Energetics The Institute of Optics Frontiers in Optics 2006 90th OSA Annual
More informationTunable single frequency fiber laser based on FP-LD injection locking
Tunable single frequency fiber laser based on FP-LD injection locking Aiqin Zhang, Xinhuan Feng, * Minggui Wan, Zhaohui Li, and Bai-ou Guan Institute of Photonics Technology, Jinan University, Guangzhou,
More informationAll-Optical Clock Division Using Period-one Oscillation of Optically Injected Semiconductor Laser
International Conference on Logistics Engineering, Management and Computer Science (LEMCS 2014) All-Optical Clock Division Using Period-one Oscillation of Optically Injected Semiconductor Laser Shengxiao
More informationTunable Multiwavelength Erbium-Doped Fiber Laser Employing PM-FBG and Mach Zehnder Interferometer with Optical Fiber Delay Line
Open Access Laser Employing PM-FBG and Mach Zehnder Interferometer with Optical Fiber Delay Line Volume 9, Number 3, June 2017 Wei He Da Li Lianqing Zhu Mingli Dong Fei Luo DOI: 10.1109/JPHOT.2017.2695671
More informationLinear cavity erbium-doped fiber laser with over 100 nm tuning range
Linear cavity erbium-doped fiber laser with over 100 nm tuning range Xinyong Dong, Nam Quoc Ngo *, and Ping Shum Network Technology Research Center, School of Electrical & Electronics Engineering, Nanyang
More informationActive mode-locking of miniature fiber Fabry-Perot laser (FFPL) in a ring cavity
Active mode-locking of miniature fiber Fabry-Perot laser (FFPL) in a ring cavity Shinji Yamashita (1)(2) and Kevin Hsu (3) (1) Dept. of Frontier Informatics, Graduate School of Frontier Sciences The University
More informationChannel wavelength selectable singleõdualwavelength erbium-doped fiber ring laser
Channel wavelength selectable singleõdualwavelength erbium-doped fiber ring laser Tong Liu Yeng Chai Soh Qijie Wang Nanyang Technological University School of Electrical and Electronic Engineering Nanyang
More informationExtending the Offset Frequency Range of the D2-135 Offset Phase Lock Servo by Indirect Locking
Extending the Offset Frequency Range of the D2-135 Offset Phase Lock Servo by Indirect Locking Introduction The Vescent Photonics D2-135 Offset Phase Lock Servo is normally used to phase lock a pair of
More informationElimination of Self-Pulsations in Dual-Clad, Ytterbium-Doped Fiber Lasers
Elimination of Self-Pulsations in Dual-Clad, Ytterbium-Doped Fiber Lasers 1.0 Modulation depth 0.8 0.6 0.4 0.2 0.0 Laser 3 Laser 2 Laser 4 2 3 4 5 6 7 8 Absorbed pump power (W) Laser 1 W. Guan and J. R.
More informationRADIO-OVER-FIBER TRANSPORT SYSTEMS BASED ON DFB LD WITH MAIN AND 1 SIDE MODES INJECTION-LOCKED TECHNIQUE
Progress In Electromagnetics Research Letters, Vol. 7, 25 33, 2009 RADIO-OVER-FIBER TRANSPORT SYSTEMS BASED ON DFB LD WITH MAIN AND 1 SIDE MODES INJECTION-LOCKED TECHNIQUE H.-H. Lu, C.-Y. Li, C.-H. Lee,
More informationGigabit Transmission in 60-GHz-Band Using Optical Frequency Up-Conversion by Semiconductor Optical Amplifier and Photodiode Configuration
22 Gigabit Transmission in 60-GHz-Band Using Optical Frequency Up-Conversion by Semiconductor Optical Amplifier and Photodiode Configuration Jun-Hyuk Seo, and Woo-Young Choi Department of Electrical and
More informationFrequency Noise Reduction of Integrated Laser Source with On-Chip Optical Feedback
MITSUBISHI ELECTRIC RESEARCH LABORATORIES http://www.merl.com Frequency Noise Reduction of Integrated Laser Source with On-Chip Optical Feedback Song, B.; Kojima, K.; Pina, S.; Koike-Akino, T.; Wang, B.;
More informationPhotonic Microwave Harmonic Generator driven by an Optoelectronic Ring Oscillator
Photonic Microwave Harmonic Generator driven by an Optoelectronic Ring Oscillator Margarita Varón Durán, Arnaud Le Kernec, Jean-Claude Mollier MOSE Group SUPAERO, 1 avenue Edouard-Belin, 3155, Toulouse,
More informationLow-Frequency Vibration Measurement by a Dual-Frequency DBR Fiber Laser
PHOTONIC SENSORS / Vol. 7, No. 3, 217: 26 21 Low-Frequency Vibration Measurement by a Dual-Frequency DBR Fiber Laser Bing ZHANG, Linghao CHENG *, Yizhi LIANG, Long JIN, Tuan GUO, and Bai-Ou GUAN Guangdong
More informationUltra-short distributed Bragg reflector fiber laser for sensing applications
Ultra-short distributed Bragg reflector fiber laser for sensing applications Yang Zhang 2, Bai-Ou Guan 1,2,*, and Hwa-Yaw Tam 3 1 Institute of Photonics Technology, Jinan University, Guangzhou 510632,
More informationDESIGN AND CHARACTERIZATION OF HIGH PERFORMANCE C AND L BAND ERBIUM DOPED FIBER AMPLIFIERS (C,L-EDFAs)
DESIGN AND CHARACTERIZATION OF HIGH PERFORMANCE C AND L BAND ERBIUM DOPED FIBER AMPLIFIERS (C,L-EDFAs) Ahmet Altuncu Arif Başgümüş Burçin Uzunca Ekim Haznedaroğlu e-mail: altuncu@dumlupinar.edu.tr e-mail:
More informationDownstream Transmission in a WDM-PON System Using a Multiwavelength SOA-Based Fiber Ring Laser Source
JOURNAL OF L A TEX CLASS FILES, VOL. X, NO. XX, XXXX XXX 1 Downstream Transmission in a WDM-PON System Using a Multiwavelength SOA-Based Fiber Ring Laser Source Jérôme Vasseur, Jianjun Yu Senior Member,
More informationMultiwavelength and Switchable Erbium-Doped Fiber Lasers
Multiwavelength and Switchable Erbium-Doped Fiber Lasers Rosa Ana PEREZ-HERRERA (1), Montserrat Fernandez-Vallejo (1), Silvia Diaz (1), M. Angeles Quintela (2), Manuel Lopez-Amo (1), and José Miguel López-Higuera
More informationDemonstration of multi-cavity optoelectronic oscillators based on multicore fibers
Demonstration of multi-cavity optoelectronic oscillators based on multicore fibers Sergi García, Javier Hervás and Ivana Gasulla ITEAM Research Institute Universitat Politècnica de València, Valencia,
More informationAMACH Zehnder interferometer (MZI) based on the
1284 JOURNAL OF LIGHTWAVE TECHNOLOGY, VOL. 23, NO. 3, MARCH 2005 Optimal Design of Planar Wavelength Circuits Based on Mach Zehnder Interferometers and Their Cascaded Forms Qian Wang and Sailing He, Senior
More information1014 IEEE JOURNAL OF QUANTUM ELECTRONICS, VOL. 40, NO. 8, AUGUST 2004
1014 IEEE JOURNAL OF QUANTUM ELECTRONICS, VOL. 40, NO. 8, AUGUST 2004 Theory and Experiments of a Mode-Beating Noise-Suppressed and Mutually Injection-Locked Fabry Perot Laser Diode and Erbium-Doped Fiber
More informationLong-distance fiber grating sensor system using a fiber ring laser with EDWA and SOA
Optics Communications 252 (2005) 127 131 www.elsevier.com/locate/optcom Long-distance fiber grating sensor system using a fiber ring laser with EDWA and SOA Peng-Chun Peng a, *, Kai-Ming Feng b, Wei-Ren
More informationMULTIFREQUENCY CONTINUOUS WAVE ERBIUM DOPED FIBER NON-RESONANT OPTICAL SOURCE
2007 Poznańskie Warsztaty Telekomunikacyjne Poznań 6-7 grudnia 2007 POZNAN POZNAN UNIVERSITY UNIVERSITYOF OF TECHNOLOGY ACADEMIC ACADEMIC JOURNALS JOURNALS No 54 Electrical Engineering 2007 Andrzej DOBROGOWSKI*
More informationR. J. Jones Optical Sciences OPTI 511L Fall 2017
R. J. Jones Optical Sciences OPTI 511L Fall 2017 Semiconductor Lasers (2 weeks) Semiconductor (diode) lasers are by far the most widely used lasers today. Their small size and properties of the light output
More informationPHASE TO AMPLITUDE MODULATION CONVERSION USING BRILLOUIN SELECTIVE SIDEBAND AMPLIFICATION. Steve Yao
PHASE TO AMPLITUDE MODULATION CONVERSION USING BRILLOUIN SELECTIVE SIDEBAND AMPLIFICATION Steve Yao Jet Propulsion Laboratory, California Institute of Technology 4800 Oak Grove Dr., Pasadena, CA 91109
More informationOptical generation of frequency stable mm-wave radiation using diode laser pumped Nd:YAG lasers
Optical generation of frequency stable mm-wave radiation using diode laser pumped Nd:YAG lasers T. Day and R. A. Marsland New Focus Inc. 340 Pioneer Way Mountain View CA 94041 (415) 961-2108 R. L. Byer
More informationA continuously tunable and filterless optical millimeter-wave generation via frequency octupling
A continuously tunable and filterless optical millimeter-wave generation via frequency octupling Chun-Ting Lin, 1 * Po-Tsung Shih, 2 Wen-Jr Jiang, 2 Jason (Jyehong) Chen, 2 Peng-Chun Peng, 3 and Sien Chi
More informationWavelength switching using multicavity semiconductor laser diodes
Wavelength switching using multicavity semiconductor laser diodes A. P. Kanjamala and A. F. J. Levi Department of Electrical Engineering University of Southern California Los Angeles, California 989-1111
More informationTunable Single-Mode Fiber Laser with a Low-Cost Active Fabry-Perot Filter of Ultra-Narrow-Linewidth and High Side-Mode-Suppressing Ratio
Tunable Single-Mode Fiber Laser with a Low-Cost Active Fabry-Perot Filter of Ultra-Narrow-Linewidth and High Side-Mode-Suppressing Ratio Gong-Ru Lin and Jung-Rung Wu ** * Institute of Electro-Optical Engineering,
More informationA NOVEL SCHEME FOR OPTICAL MILLIMETER WAVE GENERATION USING MZM
A NOVEL SCHEME FOR OPTICAL MILLIMETER WAVE GENERATION USING MZM Poomari S. and Arvind Chakrapani Department of Electronics and Communication Engineering, Karpagam College of Engineering, Coimbatore, Tamil
More informationOptoelectronic Oscillator Topologies based on Resonant Tunneling Diode Fiber Optic Links
Optoelectronic Oscillator Topologies based on Resonant Tunneling Diode Fiber Optic Links Bruno Romeira* a, José M. L Figueiredo a, Kris Seunarine b, Charles N. Ironside b, a Department of Physics, CEOT,
More informationSpurious-Mode Suppression in Optoelectronic Oscillators
Spurious-Mode Suppression in Optoelectronic Oscillators Olukayode Okusaga and Eric Adles and Weimin Zhou U.S. Army Research Laboratory Adelphi, Maryland 20783 1197 Email: olukayode.okusaga@us.army.mil
More informationDual wavelength single longitudinal mode Ytterbium-doped fiber laser using a dual-tapered Mach-Zehnder interferometer
J. Eur. Opt. Soc.-Rapid 10, 15013 (2015) www.jeos.org Dual wavelength single longitudinal mode Ytterbium-doped fiber laser using a dual-tapered Mach-Zehnder interferometer H. Ahmad harith@um.edu.my Photonics
More informationTunable 360 Photonic Radio-Frequency Phase Shifter Based on Polarization Modulation and All-Optical Differentiation
2584 JOURNAL OF LIGHTWAVE TECHNOLOGY, VOL. 31, NO. 15, AUGUST 1, 2013 Tunable 360 Photonic Radio-Frequency Phase Shifter Based on Polarization Modulation and All-Optical Differentiation Muguang Wang, Member,
More informationDIRECT MODULATION WITH SIDE-MODE INJECTION IN OPTICAL CATV TRANSPORT SYSTEMS
Progress In Electromagnetics Research Letters, Vol. 11, 73 82, 2009 DIRECT MODULATION WITH SIDE-MODE INJECTION IN OPTICAL CATV TRANSPORT SYSTEMS W.-J. Ho, H.-H. Lu, C.-H. Chang, W.-Y. Lin, and H.-S. Su
More informationSensitivity enhancement of Faraday effect based heterodyning fiber laser magnetic field sensor by lowering linear birefringence
Sensitivity enhancement of Faraday effect based heterodyning fiber laser magnetic field sensor by lowering linear birefringence Linghao Cheng, Jianlei Han, Long Jin, Zhenzhen Guo, and Bai-Ou Guan * Institute
More informationTo generate a broadband light source by using mutually injection-locked Fabry-Perot laser diodes
To generate a broadband light source by using mutually injection-locked Fabry-Perot laser diodes Cheng-Ling Ying 1, Yu-Chieh Chi 2, Chia-Chin Tsai 3, Chien-Pen Chuang 3, and Hai-Han Lu 2a) 1 Department
More informationHighly Reliable 40-mW 25-GHz 20-ch Thermally Tunable DFB Laser Module, Integrated with Wavelength Monitor
Highly Reliable 4-mW 2-GHz 2-ch Thermally Tunable DFB Laser Module, Integrated with Wavelength Monitor by Tatsuya Kimoto *, Tatsushi Shinagawa *, Toshikazu Mukaihara *, Hideyuki Nasu *, Shuichi Tamura
More informationCHAPTER 5 FINE-TUNING OF AN ECDL WITH AN INTRACAVITY LIQUID CRYSTAL ELEMENT
CHAPTER 5 FINE-TUNING OF AN ECDL WITH AN INTRACAVITY LIQUID CRYSTAL ELEMENT In this chapter, the experimental results for fine-tuning of the laser wavelength with an intracavity liquid crystal element
More informationGain-clamping techniques in two-stage double-pass L-band EDFA
PRAMANA c Indian Academy of Sciences Vol. 66, No. 3 journal of March 2006 physics pp. 539 545 Gain-clamping techniques in two-stage double-pass L-band EDFA S W HARUN 1, N Md SAMSURI 2 and H AHMAD 2 1 Faculty
More informationThe Theta Laser A Low Noise Chirped Pulse Laser. Dimitrios Mandridis
CREOL Affiliates Day 2011 The Theta Laser A Low Noise Chirped Pulse Laser Dimitrios Mandridis dmandrid@creol.ucf.edu April 29, 2011 Objective: Frequency Swept (FM) Mode-locked Laser Develop a frequency
More informationTunable single-frequency fiber laser based on the spectral narrowing effect in a nonlinear semiconductor optical amplifier
Vol. 24, No. 26 26 Dec 2016 OPTICS EXPRESS 29705 Tunable single-frequency fiber laser based on the spectral narrowing effect in a nonlinear semiconductor optical amplifier LIN WANG,1 YUAN CAO,1 MINGGUI
More informationSIGNAL processing in the optical domain is considered
1410 JOURNAL OF LIGHTWAVE TECHNOLOGY, VOL. 23, NO. 3, MARCH 2005 All-Optical Microwave Filters Using Uniform Fiber Bragg Gratings With Identical Reflectivities Fei Zeng, Student Member, IEEE, Student Member,
More informationThermal treatment method for tuning the lasing wavelength of a DFB fiber laser using coil heaters
Thermal treatment method for tuning the lasing wavelength of a DFB fiber laser using coil heaters Ha Huy Thanh and Bui Trung Dzung National Center for Technology Progress (NACENTECH) C6-Thanh Xuan Bac-Hanoi-Vietnam
More informationHigh order cascaded Raman random fiber laser with high spectral purity
Vol. 6, No. 5 5 Mar 18 OPTICS EXPRESS 575 High order cascaded Raman random fiber laser with high spectral purity JINYAN DONG,1, LEI ZHANG,1, HUAWEI JIANG,1, XUEZONG YANG,1, WEIWEI PAN,1, SHUZHEN CUI,1
More informationA novel 3-stage structure for a low-noise, high-gain and gain-flattened L-band erbium doped fiber amplifier *
Journal of Zhejiang University SCIENCE ISSN 9-9 http://www.zju.edu.cn/jzus E-mail: jzus@zju.edu.cn A novel -stage structure for a low-noise, high-gain and gain-flattened L-band erbium doped fiber amplifier
More informationIntensity-demodulated fiber-ring laser sensor system for acoustic emission detection
University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln Faculty Publications from the Department of Electrical and Computer Engineering Electrical & Computer Engineering, Department
More informationWavelength spacing tenable capability of optical comb filter using Polarization Maintaining Fiber
IOSR Journal of Applied Physics (IOSR-JAP) e-issn: 2278-4861.Volume 6, Issue 3 Ver. III (May-Jun. 2014), PP 57-62 Wavelength spacing tenable capability of optical comb filter using Polarization Maintaining
More informationA bidirectional radio over fiber system with multiband-signal generation using one singledrive
A bidirectional radio over fiber system with multiband-signal generation using one singledrive Liang Zhang, Xiaofeng Hu, Pan Cao, Tao Wang, and Yikai Su* State Key Lab of Advanced Optical Communication
More informationLoop Mirror Multi-wavelength Brillouin Fiber Laser Utilizing Semiconductor Optical Amplifier and Fiber Bragg Grating
Loop Mirror Multi-wavelength Brillouin Fiber Laser Utilizing Semiconductor Optical Amplifier and Fiber Bragg Grating N. A. Idris 1,2,*, N. A. M. Ahmad Hambali 1,2, M.H.A. Wahid 1,2, N. A. Ariffin 1,2,
More informationHIGH-PERFORMANCE microwave oscillators require a
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, VOL. 53, NO. 3, MARCH 2005 929 Injection-Locked Dual Opto-Electronic Oscillator With Ultra-Low Phase Noise and Ultra-Low Spurious Level Weimin Zhou,
More informationSimultaneous strain and temperature fiber grating laser sensor based on radio-frequency measurement
Simultaneous strain and temperature fiber grating laser sensor based on radio-frequency measurement Yan-Nan Tan, 1,2 Yang Zhang, 1 Long Jin, 2 and Bai-Ou Guan 2,* 1 PolyU-DUT Joint Research Center for
More informationDWDM millimeter-wave radio-on-fiber systems
DWDM millimeter-wave radio-on-fiber systems Hiroyuki Toda a, Toshiaki Kuri b, and Ken-ichi Kitayama c a Faculty of Engineering, Doshisha University, Kyotanabe, Kyoto, Japan 610-0321; b National Institute
More informationHeterogeneously Integrated Microwave Signal Generators with Narrow- Linewidth Lasers
Heterogeneously Integrated Microwave Signal Generators with Narrow- Linewidth Lasers John E. Bowers, Jared Hulme, Tin Komljenovic, Mike Davenport and Chong Zhang Department of Electrical and Computer Engineering
More informationLow Phase Noise Laser Synthesizer with Simple Configuration Adopting Phase Modulator and Fiber Bragg Gratings
ALMA Memo #508 Low Phase Noise Laser Synthesizer with Simple Configuration Adopting Phase Modulator and Fiber Bragg Gratings Takashi YAMAMOTO 1, Satoki KAWANISHI 1, Akitoshi UEDA 2, and Masato ISHIGURO
More informationPHOTONICS microwave signals have been extensively
606 IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, VOL. 66, NO. 1, JANUARY 2018 Simultaneous Generation of Multiband Signals Using External Cavity-Based Fabry Perot Laser Diode Bikash Nakarmi, Shilong
More informationIntroduction Fundamentals of laser Types of lasers Semiconductor lasers
ECE 5368 Introduction Fundamentals of laser Types of lasers Semiconductor lasers Introduction Fundamentals of laser Types of lasers Semiconductor lasers How many types of lasers? Many many depending on
More informationNovel High-Q Spectrum Sliced Photonic Microwave Transversal Filter Using Cascaded Fabry-Pérot Filters
229 Novel High-Q Spectrum Sliced Photonic Microwave Transversal Filter Using Cascaded Fabry-Pérot Filters R. K. Jeyachitra 1**, Dr. (Mrs.) R. Sukanesh 2 1 Assistant Professor, Department of ECE, National
More informationBroadband photonic microwave phase shifter based on controlling two RF modulation sidebands via a Fourier-domain optical processor
Broadband photonic microwave phase shifter based on controlling two RF modulation sidebands via a Fourier-domain optical processor J. Yang, 1 E. H. W. Chan, 2 X. Wang, 1 X. Feng, 1* and B. Guan 1 1 Institute
More informationHIGH POWER LASERS FOR 3 RD GENERATION GRAVITATIONAL WAVE DETECTORS
HIGH POWER LASERS FOR 3 RD GENERATION GRAVITATIONAL WAVE DETECTORS P. Weßels for the LZH high power laser development team Laser Zentrum Hannover, Germany 23.05.2011 OUTLINE Requirements on lasers for
More informationSEMICONDUCTOR lasers and amplifiers are important
240 JOURNAL OF LIGHTWAVE TECHNOLOGY, VOL. 28, NO. 3, FEBRUARY 1, 2010 Temperature-Dependent Saturation Characteristics of Injection Seeded Fabry Pérot Laser Diodes/Reflective Optical Amplifiers Hongyun
More informationFI..,. HEWLETT. High-Frequency Photodiode Characterization using a Filtered Intensity Noise Technique
FI..,. HEWLETT ~~ PACKARD High-Frequency Photodiode Characterization using a Filtered Intensity Noise Technique Doug Baney, Wayne Sorin, Steve Newton Instruments and Photonics Laboratory HPL-94-46 May,
More informationJOURNAL OF LIGHTWAVE TECHNOLOGY, VOL. 23, NO. 3, MARCH
JOURNAL OF LIGHTWAVE TECHNOLOGY, VOL. 23, NO. 3, MARCH 2005 1325 The Detuning Characteristics of Rational Harmonic Mode-Locked Semiconductor Optical Amplifier Fiber-Ring Laser Using Backward Optical Sinusoidal-Wave
More informationTiming Noise Measurement of High-Repetition-Rate Optical Pulses
564 Timing Noise Measurement of High-Repetition-Rate Optical Pulses Hidemi Tsuchida National Institute of Advanced Industrial Science and Technology 1-1-1 Umezono, Tsukuba, 305-8568 JAPAN Tel: 81-29-861-5342;
More informationProgress In Electromagnetics Research Letters, Vol. 8, , 2009
Progress In Electromagnetics Research Letters, Vol. 8, 171 179, 2009 REPEATERLESS HYBRID CATV/16-QAM OFDM TRANSPORT SYSTEMS C.-H. Chang Institute of Electro-Optical Engineering National Taipei University
More informationRECENTLY, studies have begun that are designed to meet
838 IEEE JOURNAL OF QUANTUM ELECTRONICS, VOL. 43, NO. 9, SEPTEMBER 2007 Design of a Fiber Bragg Grating External Cavity Diode Laser to Realize Mode-Hop Isolation Toshiya Sato Abstract Recently, a unique
More informationSynchronization in Chaotic Vertical-Cavity Surface-Emitting Semiconductor Lasers
Synchronization in Chaotic Vertical-Cavity Surface-Emitting Semiconductor Lasers Natsuki Fujiwara and Junji Ohtsubo Faculty of Engineering, Shizuoka University, 3-5-1 Johoku, Hamamatsu, 432-8561 Japan
More informationFlat Frequency Comb Generation Based on Efficiently Multiple Four-Wave Mixing Without Polarization Control
PHOTONIC SENSORS / Vol. 6, No. 1, 216: 85 89 Flat Frequency Comb Generation Based on Efficiently Multiple Four-Wave Mixing Without Polarization Control Qimeng DONG, Bao SUN *, Fushen CHEN, and Jun JIANG
More information22-Channel Capacity of 2.5Gbit/s DWDM-PON ONU Transmitter by Direct-Modularly Side-Mode Injection Locked FPLD
22-Channel Capacity of 2.5Gbit/s DWDM-PON ONU Transmitter by Direct-Modularly Side-Mode Injection Locked FPLD Yu-Sheng Liao a, Yung-Jui Chen b, and Gong-Ru Lin c* a Department of Photonics & Institute
More informationOptimisation of DSF and SOA based Phase Conjugators. by Incorporating Noise-Suppressing Fibre Gratings
Optimisation of DSF and SOA based Phase Conjugators by Incorporating Noise-Suppressing Fibre Gratings Paper no: 1471 S. Y. Set, H. Geiger, R. I. Laming, M. J. Cole and L. Reekie Optoelectronics Research
More informationA WDM passive optical network enabling multicasting with color-free ONUs
A WDM passive optical network enabling multicasting with color-free ONUs Yue Tian, Qingjiang Chang, and Yikai Su * State Key Laboratory of Advanced Optical Communication Systems and Networks, Department
More informationLecture 6 Fiber Optical Communication Lecture 6, Slide 1
Lecture 6 Optical transmitters Photon processes in light matter interaction Lasers Lasing conditions The rate equations CW operation Modulation response Noise Light emitting diodes (LED) Power Modulation
More informationBroadband Photonic Microwave Signal Processor With Frequency Up/Down Conversion and Phase Shifting Capability
Broadband Photonic Microwave Signal Processor With Frequency Up/Down Conversion and Phase Shifting Capability Volume 10, Number 1, February 2018 Open Access Tao Li Erwin Hoi Wing Chan Xudong Wang Xinhuan
More informationOpto-VLSI-based reconfigurable photonic RF filter
Research Online ECU Publications 29 Opto-VLSI-based reconfigurable photonic RF filter Feng Xiao Mingya Shen Budi Juswardy Kamal Alameh This article was originally published as: Xiao, F., Shen, M., Juswardy,
More informationSupplementary Figures
Supplementary Figures Supplementary Figure 1: Mach-Zehnder interferometer (MZI) phase stabilization. (a) DC output of the MZI with and without phase stabilization. (b) Performance of MZI stabilization
More informationSpecial Issue Review. 1. Introduction
Special Issue Review In recently years, we have introduced a new concept of photonic antennas for wireless communication system using radio-over-fiber technology. The photonic antenna is a functional device
More informationAn Amplified WDM-PON Using Broadband Light Source Seeded Optical Sources and a Novel Bidirectional Reach Extender
Journal of the Optical Society of Korea Vol. 15, No. 3, September 2011, pp. 222-226 DOI: http://dx.doi.org/10.3807/josk.2011.15.3.222 An Amplified WDM-PON Using Broadband Light Source Seeded Optical Sources
More informationNovel cascaded injection-locked 1.55-µm VCSELs with 66 GHz modulation bandwidth
Novel cascaded injection-locked 1.55-µm VCSELs with 66 GHz modulation bandwidth Xiaoxue Zhao, 1 * Devang Parekh, 1 Erwin K. Lau, 1 Hyuk-Kee Sung, 1, 3 Ming C. Wu, 1 Werner Hofmann, 2 Markus C. Amann, 2
More informationTunable multi-wavelength fiber lasers based on an Opto-VLSI processor and optical amplifiers
Edith Cowan University Research Online ECU Publications Pre. 2011 2009 Tunable multi-wavelength fiber lasers based on an Opto-VLSI processor and optical amplifiers Feng Xiao Edith Cowan University Kamal
More informationIEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, VOL. 60, NO. 6, JUNE
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, VOL. 60, NO. 6, JUNE 2012 1735 A Wideband Frequency Tunable Optoelectronic Oscillator Incorporating a Tunable Microwave Photonic Filter Based on Phase-Modulation
More information