Passive mode-locking performance with a mixed Nd:Lu 0.5 Gd 0.5 VO 4 crystal
|
|
- Bonnie Newman
- 6 years ago
- Views:
Transcription
1 Passive mode-locking performance with a mixed Nd:Lu 0.5 Gd 0.5 VO 4 crystal Haohai Yu, 1 Huaijin Zhang, 1* Zhengping Wang, 1 Jiyang Wang, 1 Yonggui Yu, 1 Dingyuan Tang, 2* Guoqiang Xie, 2 Hang Luo, 2 and Minhua Jiang 1 1 State Key Laboratory of Crystal Materials and Institute of Crystal Materials, Shandong University, Jinan , China, 2 School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore * Corresponding author: huaijinzhan@.sdu.edu.cn and EDYTang@ntu.edu.sg Abstract: Continuous-wave (cw) mode-locking of a diode-pumped Nd:Lu 0.5 Gd 0.5 VO 4 mixed crystal laser is reported for the first time to our knowledge with a simply compact three-mirror cavity. Stable pulses as short as 5.5 ps were generated at a repetition rate of 147 MHz. At the absorbed pump power of 16 W, a mode-locked laser with average output power of 5.31 W was obtained, giving an optical conversion efficiency of 33.2%, and a slope efficiency of 46.7% Optical Society of America OCIS codes: ( ) Mode-locked lasers, ( ) Lasers, neodymium, ( ) Lasers, diode-pumped, ( ) Laser materials References and links 1. U. Keller, Recent developments in compact ultrafast lasers, Nature 424, (2003). 2. L. Krainer, R. Paschotta, M. Moser, and U. Keller, Passively mode-locked picosecond lasers with up to 59 GHz repetition rate, Appl. Phys. Lett. 77, (2000). 3. D. Burns, M. Hetterich, A. Ferguson, E. Bente, M. D. Dawson, J. I. Davies, and S. W. Bland, High-average-power (>20-W) Nd:YVO 4 lasers mode locked by strain-compensated saturable Bragg reflectors, J. Opt. Soc. Am. B 17, (2000). 4. Y. X. Fan, J. L. He, Y. G. Wang, S. Liu, H. T. Wang, and X. Y. Ma, 2-ps passively mode-locked Nd:YVO 4 laser using an output-coupling-type semiconductor saturable absorber mirror, Appl. Phys. Lett. 86, (101103)1-3 (2005). 5. B. Y. Zhang, G. Li, M. Chen, Z. G. Zhang, and Y. G. Wang, Passive mode locking of a diode-end-pumped Nd:GdVO 4 laser with a semiconductor saturable absorber mirror, Opt. Lett. 28, (2003). 6. H. H. Yu, H. J. Zhang, Z. P. Wang, J. Y. Wang, Y. G. Yu, M. H. Jiang, D. Y. Tang, G. Q. Xie, and H. Luo, Passively mode-locked Nd:LuVO 4 laser with a GaAs wafer, Opt. Lett. 33, (2008). 7. J. Neuhaus, J. Kleinbauer, A. Killi, S. Weiler, D. Sutter, andt. Dekorsy, Passively mode-locked Yb:YAG thin-disk laserwith pulse energies exceeding 13 µj by use of an active multipass geometry, Opt. Lett. 33, (2008). 8. J. L. He, Y. X. Fan, J. Du, Y. G. Wang, S. Liu, H. T. Wang, L. H. Zhang, and Y. Hang, 4-ps passively mode-locked Nd:Gd 0.5Y 0.5VO 4 laser with a semiconductor saturable-absorber mirror, Opt. Lett. 29, (2004). 9. C. Maunier, J. L. Doualan, and R. Moncorgé, Growth, spectroscopic characterization, and laser performance of Nd:LuVO 4, a new infrared laser material that is suitable for diode pumping, J. Opt. Soc. Am. B 19, (2002). 10. H. H. Yu, H. J. Zhang, Z. P. Wang, J. Y. Wang, Y. G. Yu, Z. Shao, M. H. Jiang, and X. Y. Zhang, Continuous wave and passively Q-switched laser performance of a Nd-doped mixed crystal Nd:Lu 0.5Gd 0.5VO 4, Appl. Phys. Lett. 90, (231110)1-3 (2007). 11. H. H. Yu, H. J. Zhang, Z. P. Wang, J. Y. Wang, Y. G. Yu, X. F. Chen, Z. Shao, M. H. Jiang, Z. C. Ling, and H. R. Xia, Characterization of mixed Nd:Lu xgd 1 xvo 4 laser crystals, J. Appl. Phys. 101, (113109)1-7 (2007). 12. G.Q. Xie, D.Y. Tang, H. Luo, H.H. Yu, H.J. Zhang, and L.J. Qian, High-power passive mode locking of a compact diode-pumped Nd:LuVO 4 laser, Laser Phys. Lett. 5, , (2008) 13. L. McDonagh, R. Wallenstein, and A. Nebel, 111W, 110 MHz repetition-rate, passively mode-locked TEM 00 Nd:YVO 4 master oscillator power amplifier pumped at 888 nm, Opt. Lett. 32, (2007). (C) 2009 OSA 2 March 2009 / Vol. 17, No. 5 / OPTICS EXPRESS 3264
2 1. Introduction High power ultrashort pulse lasers have wide applications in industry, military and scientific researches, and have been intensively investigated [1-7]. The performance of a mode-locked laser is ultimately determined by the property of the laser gain medium. Generally speaking, in order to achieve high efficiency and ultrashort pulse mode-locking, laser materials with large stimulated emission cross section and broad fluorescence linewidth are always preferred. The Nd-doped single vanadates, Nd:YVO 4 [3,4], Nd:GdVO 4 [5], and Nd:LuVO 4 [6], have been proved to be excellent laser crystals for the diode-pumped mode-locked lasers. They all have large absorption and stimulated emission cross sections, compared with Nd:YAG. In addition, the Nd:GdVO 4 crystals also have a large thermal conductivity along the <110> crystal directions. Recently, it was found that by substituting a fraction of Gd ions with Y ions in Nd:GdVO 4 crystal, a new mixed vanadate crystal Nd:Y x Gd 1-x VO 4 could be produced, and the mixed crystal had much broader fluorescence spectrum than either of the single crystals Nd:GdVO 4 and Nd:YVO 4. Passive mode-locking with a Nd:Y x Gd 1-x VO 4 mixed crystal has proved that the mixed crystal is a better candidate for ultrashort-pulse generation than the single ones[8]. Among the three Nd-doped single vanadate crystals, the Nd:LuVO 4 crystal has the highest stimulated emission cross-section and relatively broad florescence spectrum [9]. It is anticipated that substituting a fraction of Gd ions with the Lu ions should produce mixed crystal with even more promising mode-locking properties. Indeed, preliminary studies have proven the excellent cw and Q-switching performance of the high-power diode-pumped Nd:Lu x Gd 1-x VO 4 mixed crystal lasers [10]. In this letter, we report on the passive mode-locking performance of a high-power diode pumped Nd:Lu 0.5 Gd 0.5 VO 4 mixed crystal laser. Mode-locked with a semiconductor saturable-absorber mirror (SESAM), stable pulses with duration of 5.5 ps and a repetition rate of 147 MHz have been achieved. A maximum output power of 5.31 W was obtained under an absorbed pump power of 16 W, which gives an optical conversion efficiency of 33.2%. Comparing with the mode-locking of the Nd:LuVO 4 laser under the same experimental conditions, the mixed crystal laser produced the much shorter pulses. 2. Experiments The Nd:Lu 0.5 Gd 0.5 VO 4 crystal is an isomorph of Nd:LuVO 4 and Nd:GdVO 4. Therefore, they have similar physical properties, e.g. they all posses the ZrSiO 4 structure, and have the same central absorption and emission wavelength. However, due to the random distribution of the Lu and Gd ions neighboring the Nd ions, the inhomogeneous broadening of the spectrum lines is caused in the mixed crystal, which leads the broader absorption and fluorescence linewidths. Figure 1 shows the measured fluorescence spectrum of the mixed crystal. The full width at half-maximum (FWHM) of the (C) 2009 OSA 2 March 2009 / Vol. 17, No. 5 / OPTICS EXPRESS 3265
3 Fig. 1. Fluorescence spectrum of Nd:Lu 0.5Gd 0.5VO 4 at an excitation wavelength of 808 nm. Fig. 2. Experimental setup of the mode-locked Nd:Lu 0.5Gd 0.5VO 4 laser. fluorescence band centered at µm is about 4 nm, which is much broader than those of the vanadate single crystals (~1-2 nm) and even Nd:Y x Gd 1-x VO 4 mixed crystal (>2 nm) [8]. A schematic of the laser configuration is shown in Fig. 2. The pump source employed was a 50 W fiber-coupled LD array with the central wavelength at 806 nm. The core size of the fiber is 300 µm in radius with a numerical aperture of The pump light was focused into the crystal by an imaging unit with a beam compression ratio of 1.8:1. The focal spot in the crystal had a size of about 170 µm in radius. A compact three-mirror cavity was used for the laser. The input mirror M1 was a flat mirror anti-reflection (AR) coated at 808 nm and high-reflection (HR) coated at 1.06 µm. M2 was a concave mirror with radium of curvature (ROC) of 500 mm and a transmission rate of 2% or 6% at 1.06 µm. Hence, the total OC was 4% and 12%, respectively. The lengths of the two arms of the cavity, L1 and L2, were 49.5 cm and 52.5 cm, respectively. Taking into account the measured thermal lens effect in the laser crystal, the mode radius of the laser beam in the SESAM was calculated to be about 110 µm. The Nd:Lu 0.5 Gd 0.5 VO 4 crystal used was grown by the Czochralski method under a nitrogen atmosphere containing 2% oxygen (v/v) in an iridium crucible. A Lu composition value of x=0.5 was selected, because it makes the mixed crystal having the broadest spectrum linewidth [11]. The crystal was cut (C) 2009 OSA 2 March 2009 / Vol. 17, No. 5 / OPTICS EXPRESS 3266
4 along its a-axis with dimensions of mm 3. The 3 3 mm 2 faces were polished and AR coated at 808 nm and 1.06 µm. The SESAMs used in the experiments were two commercial products (BATOP Optoelectronics, Germany). They had the respective absorbance (A) of 2% and 3% at 1.06 µm with modulation depth of 1.2% and 1.6%, and same saturation fluence of 70 µj/cm 2. The mode-locked pulse trains were monitored by a high-speed photoreceiver (1611-FS, New Focus, Inc) and an oscilloscope (OPO 7104, Tektronix Inc.), and the pulse duration was measured with a commercial autocorrelator (FR-103XL, Femtochrome Research, Inc.). 3. Results and discussions Figure 3 shows the variation of the average output power of the laser with the absorbed pump power, by using the SESAM with A=3%. With an OC of 2%, the laser had a threshold of 2.5 W. Under an absorbed pump power of 11.4 W, the average output power was 2.1 W, which gives an optical conversion efficiency of 19%. The slope efficiency of the laser was 25%. In order to avoid too strong saturation of the SESAM by the intracavity power with the OC of 2%, the pump power was limited to be lower than 11.4 W. We then used the OC with transmission of 6% to replace that with OC=2%. The average output power as high as 5.31 W was obtained with a pump power of 16 W, corresponding the optical conversion efficiency of 33.2%. When the pump power was further increased, the average power exhibited clear tendency of power saturation caused Fig. 3. Variation of average output power versus absorbed pump power. Fig. 4. Mode-locked pulse train recorded in 10 ns per division time scale. Inset: Mode-locked pulse train recorded in 10 µs per division time scale. (C) 2009 OSA 2 March 2009 / Vol. 17, No. 5 / OPTICS EXPRESS 3267
5 by the thermal lens effect induced cavity instability. The threshold was 4.38 W and slope efficiency was as high as 46.7%. Stable cw mode-locking was always obtained when the intracavity power was larger than about 20 W. Figure 4 shows a typical cw mode-locked pulse train in 10 ns per division time scale. The inset of this figure shows the pulse train in 10 µs per division, which also indicated that the relaxation oscillations were well suppressed. The repetition period of the pulses was 6.8 ns, which corresponds to the cavity round trip time and gives the pulse repetition rate of 147 MHz. The pulse-to-pulse intensity fluctuation was estimated to be less than 2%. Based on the measured average power and pulse repetition rate, we estimated that the maximum mode-locked pulse energy was about 36 nj. Figure 5 shows a typical autocorrelation trace of the mode-locked pulses. From this figure, it can be found that the laser was clean mode-locked. The FWHM of the autocorrelation was about 8.6 ps. If a hyperbolic secant (sech 2 ) pulse profile was assumed, the pulse duration of the mode-locked pulses was τ=5.5 ps. The spectrum of the mode-locked pulses is shown in the right inset of Fig. 5, which has a FWHM of 0.32 nm. Therefore, the time-bandwidth product of the pulses is 0.46, which is close to the value of a transform-limited sech 2 pulse. The a bit larger value indicated that the output pulses were chirped. The mode-locking of Fig. 5. Measured autocorrelation trace of the cw mode-locked Nd:Lu 0.5Gd 0.5VO 4 laser pulses. Left inset: autocorrelation signal with A=2%, Right inset: spectrum of the mode-locked pulses with A=3%. Nd:Lu 0.5 Gd 0.5 VO 4 was also studied with A=2%. The left inset in the figure shows the autocorrelation trace of the mode-locked pulses with the A=2% SESAM, where the FWHM of the mode-locked pulse achieved was 16.4 ps, corresponding τ=10.6 ps if a sech 2 profile was taken. Stable mode-locked pulses with duration of about τ=13.2 ps have also been obtained from a Nd:LuVO 4 laser under the same experimental condition with A=3% [12]. It is owing to its broader fluorescence linewidth that the Nd:Lu 0.5 Gd 0.5 VO 4 laser produced the shorter pulses. Compared with the previous results with Nd:Y x Gd 1-x VO 4 [8], we have obtained the mode-locking with comparable pulse width but much larger average output power, by using Nd:Lu 0.5 Gd 0.5 VO 4. Recently, a passively mode-locked Nd:YVO 4 laser with an average output power of 56 W and pulse width of 33 ps was reported [13]. Compared to that the Nd:Lu 0.5 Gd 0.5 VO 4 crystal has the similar thermal properties [11], and much broader gain linewidth than those of the Nd:YVO 4 crystal, we believe that comparable, and even better in terms of the mode-locked pulse duration, mode-locking performance of (C) 2009 OSA 2 March 2009 / Vol. 17, No. 5 / OPTICS EXPRESS 3268
6 the laser with the Nd:Lu 0.5 Gd 0.5 VO 4 laser could be obtained. Giving the broad fluorescence linewidth and the large stimulated emission cross-section of the mixed crystal, we proposed that subpicosecond mode-locked pulses should be feasible to achieve. 4. Conclusion In conclusion, passive mode-locking of a diode pumped Nd:Lu 0.5 Gd 0.5 VO 4 laser was demonstrated with a SESAM. Stable cw mode-locked pulses with 5.5 ps pulse duration and 147 MHz repetition rate have been obtained. A clean mode-locked laser with maximum average output power of 5.31 W was achieved with a slope efficiency of 46.7%. Compared with the Nd doped vanadate crystals, Nd:Lu 0.5 Gd 0.5 VO 4 is a better candidate for ultrashort pulse laser, owing to its broad gain spectrum. Giving the large fluorescence linewidth and stimulated emission-cross section of the crystal, we believe it could be a promising material for the diode pumped ultrashort-pulse lasers. Acknowledgment This work is supported by the Natural Science Foundation of Shandong Province under Grand No Y2004F01, the National Natural Science Foundation of China under Grand No , , , and the National Basic Research Program of China under Grand 2004CB (C) 2009 OSA 2 March 2009 / Vol. 17, No. 5 / OPTICS EXPRESS 3269
Quantum-Well Semiconductor Saturable Absorber Mirror
Chapter 3 Quantum-Well Semiconductor Saturable Absorber Mirror The shallow modulation depth of quantum-dot saturable absorber is unfavorable to increasing pulse energy and peak power of Q-switched laser.
More informationVertical External Cavity Surface Emitting Laser
Chapter 4 Optical-pumped Vertical External Cavity Surface Emitting Laser The booming laser techniques named VECSEL combine the flexibility of semiconductor band structure and advantages of solid-state
More informationHigh-power diode-end-pumped laser with multisegmented Nd-doped yttrium vanadate
High-power diode-end-pumped laser with multisegmented Nd-doped yttrium vanadate Y. J. Huang and Y. F. Chen * Department of Electrophysics, National Chiao Tung University, Hsinchu, Taiwan * yfchen@cc.nctu.edu.tw
More information6.1 Thired-order Effects and Stimulated Raman Scattering
Chapter 6 Third-order Effects We are going to focus attention on Raman laser applying the stimulated Raman scattering, one of the third-order nonlinear effects. We show the study of Nd:YVO 4 intracavity
More informationTunable GHz pulse repetition rate operation in high-power TEM 00 -mode Nd:YLF lasers at 1047 nm and 1053 nm with self mode locking
Tunable GHz pulse repetition rate operation in high-power TEM 00 -mode Nd:YLF lasers at 1047 nm and 1053 nm with self mode locking Y. J. Huang, Y. S. Tzeng, C. Y. Tang, Y. P. Huang, and Y. F. Chen * Department
More informationHigh-Power, Passively Q-switched Microlaser - Power Amplifier System
High-Power, Passively Q-switched Microlaser - Power Amplifier System Yelena Isyanova Q-Peak, Inc.,135 South Road, Bedford, MA 01730 isyanova@qpeak.com Jeff G. Manni JGM Associates, 6 New England Executive
More informationA new picosecond Laser pulse generation method.
PULSE GATING : A new picosecond Laser pulse generation method. Picosecond lasers can be found in many fields of applications from research to industry. These lasers are very common in bio-photonics, non-linear
More information1ps passively mode-locked laser operation of Na,Yb:CaF 2 crystal
1ps passively mode-locked laser operation of Na,Yb:CaF 2 crystal Juan Du, Xiaoyan Liang State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy
More informationDEVELOPMENT OF CW AND Q-SWITCHED DIODE PUMPED ND: YVO 4 LASER
DEVELOPMENT OF CW AND Q-SWITCHED DIODE PUMPED ND: YVO 4 LASER Gagan Thakkar 1, Vatsal Rustagi 2 1 Applied Physics, 2 Production and Industrial Engineering, Delhi Technological University, New Delhi (India)
More informationSoliton stability conditions in actively modelocked inhomogeneously broadened lasers
Lu et al. Vol. 20, No. 7/July 2003 / J. Opt. Soc. Am. B 1473 Soliton stability conditions in actively modelocked inhomogeneously broadened lasers Wei Lu,* Li Yan, and Curtis R. Menyuk Department of Computer
More informationHigh repetition rate, q-switched and intracavity frequency doubled Nd:YVO 4 laser at 671nm
High repetition rate, q-switched and intracavity frequency doubled Nd:YVO 4 laser at 671nm Hamish Ogilvy, Michael J. Withford, Peter Dekker and James A. Piper Macquarie University, NSW 2109, Australia
More informationProgress in ultrafast Cr:ZnSe Lasers. Evgueni Slobodtchikov, Peter Moulton
Progress in ultrafast Cr:ZnSe Lasers Evgueni Slobodtchikov, Peter Moulton Topics Diode-pumped Cr:ZnSe femtosecond oscillator CPA Cr:ZnSe laser system with 1 GW output This work was supported by SBIR Phase
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 informationPassively mode-locked femtosecond laser with an Nd-doped La 3 Ga 5 SiO 14 disordered crystal
Passively mode-locked femtosecond laser with an Nd-doped La 3 Ga 5 SiO 14 disordered crystal Jiaxing Liu, 1 Zhaohua Wang, 1,* Kunna He, 2 Long Wei, 3 Zhiguo Zhang, 1 Zhiyi Wei, 1,5 Haohai Yu, 4 Huaijin
More informationA CW seeded femtosecond optical parametric amplifier
Science in China Ser. G Physics, Mechanics & Astronomy 2004 Vol.47 No.6 767 772 767 A CW seeded femtosecond optical parametric amplifier ZHU Heyuan, XU Guang, WANG Tao, QIAN Liejia & FAN Dianyuan State
More information101 W of average green beam from diode-side-pumped Nd:YAG/LBO-based system in a relay imaged cavity
PRAMANA c Indian Academy of Sciences Vol. 75, No. 5 journal of November 2010 physics pp. 935 940 101 W of average green beam from diode-side-pumped Nd:YAG/LBO-based system in a relay imaged cavity S K
More informationHigh power VCSEL array pumped Q-switched Nd:YAG lasers
High power array pumped Q-switched Nd:YAG lasers Yihan Xiong, Robert Van Leeuwen, Laurence S. Watkins, Jean-Francois Seurin, Guoyang Xu, Alexander Miglo, Qing Wang, and Chuni Ghosh Princeton Optronics,
More informationRegenerative Amplification in Alexandrite of Pulses from Specialized Oscillators
Regenerative Amplification in Alexandrite of Pulses from Specialized Oscillators In a variety of laser sources capable of reaching high energy levels, the pulse generation and the pulse amplification are
More informationMulti-Wavelength, µm Tunable, Tandem OPO
Multi-Wavelength, 1.5-10-µm Tunable, Tandem OPO Yelena Isyanova, Alex Dergachev, David Welford, and Peter F. Moulton Q-Peak, Inc.,135 South Road, Bedford, MA 01730 isyanova@qpeak.com Introduction Abstract:
More informationHigh Power Thin Disk Lasers. Dr. Adolf Giesen. German Aerospace Center. Institute of Technical Physics. Folie 1. Institute of Technical Physics
High Power Thin Disk Lasers Dr. Adolf Giesen German Aerospace Center Folie 1 Research Topics - Laser sources and nonlinear optics Speiser Beam control and optical diagnostics Riede Atm. propagation and
More informationStable laser-diode pumped microchip sub-nanosecond Cr,Yb:YAG self-q-switched laser
Laser Phys. Lett., No. 8, 87 91 (5) / DOI 1.1/lapl.5118 87 Abstract: Near-diffraction-limited longitudinal multimode self- Q-switched microchip Cr,Yb:YAG laser is obtained by using of a laser diode as
More informationG. Norris* & G. McConnell
Relaxed damage threshold intensity conditions and nonlinear increase in the conversion efficiency of an optical parametric oscillator using a bi-directional pump geometry G. Norris* & G. McConnell Centre
More informationRing cavity tunable fiber laser with external transversely chirped Bragg grating
Ring cavity tunable fiber laser with external transversely chirped Bragg grating A. Ryasnyanskiy, V. Smirnov, L. Glebova, O. Mokhun, E. Rotari, A. Glebov and L. Glebov 2 OptiGrate, 562 South Econ Circle,
More informationA 100 W all-fiber linearly-polarized Yb-doped single-mode fiber laser at 1120 nm
A 1 W all-fiber linearly-polarized Yb-doped single-mode fiber laser at 112 nm Jianhua Wang, 1,2 Jinmeng Hu, 1 Lei Zhang, 1 Xijia Gu, 3 Jinbao Chen, 2 and Yan Feng 1,* 1 Shanghai Key Laboratory of Solid
More informationHigh Average Power, High Repetition Rate Side-Pumped Nd:YVO 4 Slab Laser
High Average Power, High Repetition Rate Side-Pumped Nd:YVO Slab Laser Kevin J. Snell and Dicky Lee Q-Peak Incorporated 135 South Rd., Bedford, MA 173 (71) 75-9535 FAX (71) 75-97 e-mail: ksnell@qpeak.com,
More informationLOPUT Laser: A novel concept to realize single longitudinal mode laser
PRAMANA c Indian Academy of Sciences Vol. 82, No. 2 journal of February 2014 physics pp. 185 190 LOPUT Laser: A novel concept to realize single longitudinal mode laser JGEORGE, KSBINDRAand SMOAK Solid
More informationHigh average power picosecond pulse generation from a thulium-doped all-fiber MOPA system
High average power picosecond pulse generation from a thulium-doped all-fiber MOPA system Jiang Liu, Qian Wang, and Pu Wang * National Center of Laser Technology, Institute of Laser Engineering, Beijing
More informationQ-switched mode-locking with acousto-optic modulator in a diode pumped Nd:YVO 4 laser
Q-switched mode-locking with acousto-optic modulator in a diode pumped Nd:YVO 4 laser Jan K. Jabczyński, Waldemar Zendzian, Jacek Kwiatkowski Institute of Optoelectronics, Military University of Technology,
More informationDr. Rüdiger Paschotta RP Photonics Consulting GmbH. Competence Area: Fiber Devices
Dr. Rüdiger Paschotta RP Photonics Consulting GmbH Competence Area: Fiber Devices Topics in this Area Fiber lasers, including exotic types Fiber amplifiers, including telecom-type devices and high power
More informationDesign of efficient high-power diode-end-pumped TEMoo Nd:YVO4. laser. Yung Fu Chen*, Chen Cheng Liaob, Yu Pin Lanb, S. C. Wangb
Design of efficient high-power diode-end-pumped TEMoo Nd:YVO4 laser Yung Fu Chen*, Chen Cheng Liaob, Yu Pin Lanb, S. C. Wangb ADepartment of Electrophysics, National Chiao Tung University Hsinchu, Taiwan,
More informationPERFORMANCE OF PHOTODIGM S DBR SEMICONDUCTOR LASERS FOR PICOSECOND AND NANOSECOND PULSING APPLICATIONS
PERFORMANCE OF PHOTODIGM S DBR SEMICONDUCTOR LASERS FOR PICOSECOND AND NANOSECOND PULSING APPLICATIONS By Jason O Daniel, Ph.D. TABLE OF CONTENTS 1. Introduction...1 2. Pulse Measurements for Pulse Widths
More informationIEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS, VOL. 2, NO. 3, SEPTEMBER
IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS, VOL. 2, NO. 3, SEPTEMBER 1996 435 Semiconductor Saturable Absorber Mirrors (SESAM s) for Femtosecond to Nanosecond Pulse Generation in Solid-State
More informationExternal-Cavity Tapered Semiconductor Ring Lasers
External-Cavity Tapered Semiconductor Ring Lasers Frank Demaria Laser operation of a tapered semiconductor amplifier in a ring-oscillator configuration is presented. In first experiments, 1.75 W time-average
More informationAll-fiber, all-normal dispersion ytterbium ring oscillator
Early View publication on www.interscience.wiley.com (issue and page numbers not yet assigned; citable using Digital Object Identifier DOI) Laser Phys. Lett. 1 5 () / DOI./lapl.9 1 Abstract: Experimental
More informationModule 4 : Third order nonlinear optical processes. Lecture 24 : Kerr lens modelocking: An application of self focusing
Module 4 : Third order nonlinear optical processes Lecture 24 : Kerr lens modelocking: An application of self focusing Objectives This lecture deals with the application of self focusing phenomena to ultrafast
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 informationThin-Disc-Based Driver
Thin-Disc-Based Driver Jochen Speiser German Aerospace Center (DLR) Institute of Technical Physics Solid State Lasers and Nonlinear Optics Folie 1 German Aerospace Center! Research Institution! Space Agency!
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 informationdnx/dt = -9.3x10-6 / C dny/dt = -13.6x10-6 / C dnz/dt = ( λ)x10-6 / C
Lithium Triborate Crystal LBO Lithium triborate (LiB3O5 or LBO) is an excellent nonlinear optical crystal for many applications. It is grown by an improved flux method. AOTK s LBO is Featured by High damage
More informationThe Narrow Pulse-Width Laser-Diode End-Pumped Nd:Yvo4/Lbo Green. Laser
Applied Mechanics and Materials Vols. 26-28 (21) pp 12-123 Online: 21-6-3 (21) Trans Tech Publications, Switzerland doi:1.428/www.scientific.net/amm.26-28.12 The Narrow Pulse-Width Laser-Diode End-Pumped
More informationNovel use of GaAs as a passive Q-switch as well as an output coupler for diode-pumped infrared solid-state lasers
Novel use of GaAs as a passive Q-switch as well as an output coupler for diode-pumped infrared solid-state lasers Jianhui Gu *a, Siu-Chung Tam a, Yee-Loy Lam a, Yihong Chen b, Chan-Hin Kam a, Wilson Tan
More informationA continuous-wave Raman silicon laser
A continuous-wave Raman silicon laser Haisheng Rong, Richard Jones,.. - Intel Corporation Ultrafast Terahertz nanoelectronics Lab Jae-seok Kim 1 Contents 1. Abstract 2. Background I. Raman scattering II.
More informationKilowatt Class High-Power CW Yb:YAG Cryogenic Laser
Kilowatt Class High-Power CW Yb:YAG Cryogenic Laser D.C. Brown, J.M. Singley, E. Yager, K. Kowalewski, J. Guelzow, and J. W. Kuper Snake Creek Lasers, LLC, Hallstead, PA 18822 ABSTRACT We discuss progress
More informationSingle frequency MOPA system with near diffraction limited beam
Single frequency MOPA system with near diffraction limited beam quality D. Chuchumishev, A. Gaydardzhiev, A. Trifonov, I. Buchvarov Abstract Near diffraction limited pulses of a single-frequency and passively
More informationShort pulse close to round-trip time generated by cavityless high gain Nd:GdVO4 bounce geometry
Short pulse close to round-trip time generated by cavityless high gain Nd:GdVO4 bounce geometry RUI GUO, 1, MINGMING NIE, 1,, QIANG LIU, 1, MALI GONG 1,3,* 1 State Key Laboratory of Precision Measurement
More informationSpecial 30th Anniversary
Special 3th Anniversary Semiconductor Saturable Absorber Mirrors (SESAM s) for Femtosecond to Nanosecond Pulse Generation in Solid-State Lasers Reprint of most cited article from JSTQE Vol. 2, No. 3, Sept
More informationReview of MPS Solid State Laser Systems
Review of MPS Solid State Laser Systems P.F. Moulton Q-Peak 135 South Road Bedford, MA 01730 LEOS 2006 Montreal, Canada November 2, 2006 Outline General design Specific systems Nd:YLF, 1047 and 1053 nm
More informationEfficient, high-power, ytterbium-fiber-laser-pumped picosecond optical parametric oscillator
Efficient, high-power, ytterbium-fiber-laser-pumped picosecond optical parametric oscillator O. Kokabee, 1,* A. Esteban-Martin, 1 and M. Ebrahim-Zadeh 1,2 1 ICFO-Institut de Ciencies Fotoniques, Mediterranean
More informationYellow nanosecond sum-frequency generating optical. parametric oscillator using periodically poled LiNbO 3
Yellow nanosecond sum-frequency generating optical parametric oscillator using periodically poled LiNbO 3 Ole Bjarlin Jensen 1*, Morten Bruun-Larsen 2, Olav Balle-Petersen 3 and Torben Skettrup 4 1 DTU
More informationHigh-power diode-pumped Er 3+ :YAG single-crystal fiber laser
High-power diode-pumped Er 3+ :YAG single-crystal fiber laser Igor Martial, 1,2,* Julien Didierjean, 2 Nicolas Aubry, 2 François Balembois, 1 and Patrick Georges 1 1 Laboratoire Charles Fabry de l Institut
More informationYb-doped Mode-locked fiber laser based on NLPR Yan YOU
Yb-doped Mode-locked fiber laser based on NLPR 20120124 Yan YOU Mode locking method-nlpr Nonlinear polarization rotation(nlpr) : A power-dependent polarization change is converted into a power-dependent
More informationEfficient corner-pumped Nd:YAG/YAG composite slab laser
Efficient corner-pumped Nd:YAG/YAG composite slab laser Liu Huan( 刘欢 ) and Gong Ma-Li( 巩马理 ) Center for Photonics and Electronics, Department of Precision Instruments and Mechanology, Tsinghua University,
More informationChristoph Gerhard, Frédéric Druon, Patrick Georges, Vincent Couderc, Philippe Leproux. To cite this version:
Stable mode-locked operation of a low repetition rate diode-pumped Nd : GdVO4 laser by combining quadratic polarisation switching and a semiconductor saturable absorber mirror Christoph Gerhard, Frédéric
More informationPicosecond laser system based on microchip oscillator
JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS Vol. 10, No. 11, November 008, p. 30-308 Picosecond laser system based on microchip oscillator A. STRATAN, L. RUSEN *, R. DABU, C. FENIC, C. BLANARU Department
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 informationResearch on the mechanism of high power solid laser Wenkai Huang, Yu Wu
International Conference on Automation, Mechanical Control and Computational Engineering (AMCCE 015) Research on the mechanism of high power solid laser Wenkai Huang, Yu Wu Lab center, Guangzhou University,
More informationStable, 12 W, continuous-wave single-frequency Nd:YVO 4 green laser polarized and dual-end pumped at 880 nm
Stable, 12 W, continuous-wave single-frequency Nd:YVO 4 green laser polarized and dual-end pumped at 880 nm Jianli Liu, Zhiyong Wang, Hong Li, Qin Liu, Kuanshou Zhang* State Key Laboratory of Quantum Optics
More information3550 Aberdeen Ave SE, Kirtland AFB, NM 87117, USA ABSTRACT 1. INTRODUCTION
Beam Combination of Multiple Vertical External Cavity Surface Emitting Lasers via Volume Bragg Gratings Chunte A. Lu* a, William P. Roach a, Genesh Balakrishnan b, Alexander R. Albrecht b, Jerome V. Moloney
More informationDBR based passively mode-locked 1.5m semiconductor laser with 9 nm tuning range Moskalenko, V.; Williams, K.A.; Bente, E.A.J.M.
DBR based passively mode-locked 1.5m semiconductor laser with 9 nm tuning range Moskalenko, V.; Williams, K.A.; Bente, E.A.J.M. Published in: Proceedings of the 20th Annual Symposium of the IEEE Photonics
More informationE. U. Rafailov Optoelectronics and Biomedical Photonics Group School of Engineering and Applied Science Aston University Aston Triangle Birmingham
E. U. Rafailov Optoelectronics and Biomedical Photonics Group School of Engineering and Applied Science Aston University Aston Triangle Birmingham UK Outline Quantum Dot materials InAs/GaAs Quantum Dot
More informationPUBLISHED VERSION.
PUBLISHED VERSION Chang, Wei-Han; Simakov, Nikita; Hosken, David John; Munch, Jesper; Ottaway, David John; Veitch, Peter John. Resonantly diode-pumped continuous-wave and Q-switched Er:YAG laser at 1645
More informationControllable harmonic mode locking and multiple pulsing in a Ti:sapphire laser
Controllable harmonic mode locking and multiple pulsing in a Ti:sapphire laser Xiaohong Han, Jian Wu, and Heping Zeng* State Key Laboratory of Precision Spectroscopy, and Department of Physics, East China
More informationDevelopment of scalable laser technology for EUVL applications
Development of scalable laser technology for EUVL applications Tomáš Mocek, Ph.D. Chief Scientist & Project Leader HiLASE Centre CZ.1.05/2.1.00/01.0027 Lasers for real-world applications Laser induced
More informationFiber Laser Chirped Pulse Amplifier
Fiber Laser Chirped Pulse Amplifier White Paper PN 200-0200-00 Revision 1.2 January 2009 Calmar Laser, Inc www.calmarlaser.com Overview Fiber lasers offer advantages in maintaining stable operation over
More informationSingle-frequency operation of a Cr:YAG laser from nm
Single-frequency operation of a Cr:YAG laser from 1332-1554 nm David Welford and Martin A. Jaspan Paper CThJ1, CLEO/QELS 2000 San Francisco, CA May 11, 2000 Outline Properties of Cr:YAG Cr:YAG laser design
More informationGraduate University of Chinese Academy of Sciences (GUCAS), Beijing , China 3
OptoElectronics Volume 28, Article ID 151487, 4 pages doi:1.1155/28/151487 Research Article High-Efficiency Intracavity Continuous-Wave Green-Light Generation by Quasiphase Matching in a Bulk Periodically
More informationGeneration of 15-nJ pulses from a highly efficient, low-cost. multipass-cavity Cr 3+ :LiCAF laser
Generation of 15-nJ pulses from a highly efficient, low-cost multipass-cavity Cr 3+ :LiCAF laser Umit Demirbas 1, Alphan Sennaroglu 1-2, Franz X. Kärtner 1, and James G. Fujimoto 1 1 Department of Electrical
More informationUltrafast Lasers with Radial and Azimuthal Polarizations for Highefficiency. Applications
WP Ultrafast Lasers with Radial and Azimuthal Polarizations for Highefficiency Micro-machining Applications Beneficiaries Call Topic Objective ICT-2013.3.2 Photonics iii) Laser for Industrial processing
More informationActively mode-locked Raman fiber laser
Actively mode-locked Raman fiber laser Xuezong Yang, 1,2 Lei Zhang, 1 Huawei Jiang, 1,2 Tingwei Fan, 1,2 and Yan Feng 1,* 1 Shanghai Institute of Optics and fine Mechanics, Chinese Academy of Sciences,
More informationPassively Q-switched m intracavity optical parametric oscillator
Passively Q-switched 1.57- m intracavity optical parametric oscillator Yuri Yashkir and Henry M. van Driel We demonstrate an eye-safe KTP-based optical parametric oscillator OPO driven intracavity by a
More informationMitigation of Self-Pulsing in High Power Pulsed Fiber Lasers
Mitigation of Self-Pulsing in High Power Pulsed Fiber Lasers Yusuf Panbiharwala, Deepa Venkitesh, Balaji Srinivasan* Department of Electrical Engineering, Indian Institute of Technology Madras. *Email
More informationFiber-laser-pumped Ti:sapphire laser
Fiber-laser-pumped Ti:sapphire laser G. K. Samanta, 1,* S. Chaitanya Kumar, 1 Kavita Devi, 1 and M. Ebrahim-Zadeh 1,2 1 ICFO-Institut de Ciencies Fotoniques, Mediterranean Technology Park, 08860 Castelldefels,
More informationHigh-power semiconductor lasers for applications requiring GHz linewidth source
High-power semiconductor lasers for applications requiring GHz linewidth source Ivan Divliansky* a, Vadim Smirnov b, George Venus a, Alex Gourevitch a, Leonid Glebov a a CREOL/The College of Optics and
More informationHigh-Power Semiconductor Laser Amplifier for Free-Space Communication Systems
64 Annual report 1998, Dept. of Optoelectronics, University of Ulm High-Power Semiconductor Laser Amplifier for Free-Space Communication Systems G. Jost High-power semiconductor laser amplifiers are interesting
More informationOptimization of supercontinuum generation in photonic crystal fibers for pulse compression
Optimization of supercontinuum generation in photonic crystal fibers for pulse compression Noah Chang Herbert Winful,Ted Norris Center for Ultrafast Optical Science University of Michigan What is Photonic
More informationImproving the efficiency of an optical parametric oscillator by tailoring the pump pulse shape
Improving the efficiency of an optical parametric oscillator by tailoring the pump pulse shape Zachary Sacks, 1,* Ofer Gayer, 2 Eran Tal, 1 and Ady Arie 2 1 Elbit Systems El Op, P.O. Box 1165, Rehovot
More informationTrace-gas detection based on the temperature-tuning periodically poled MgO: LiNbO 3 optical parametric oscillator
JOUNAL OF OPTOELECTONICS AND ADVANCED MATEIALS Vol. 8, No. 4, August 2006, p. 1438-14 42 Trace-gas detection based on the temperature-tuning periodically poled MgO: LiNbO 3 optical parametric oscillator
More informationFiber Lasers for EUV Lithography
Fiber Lasers for EUV Lithography A. Galvanauskas, Kai Chung Hou*, Cheng Zhu CUOS, EECS Department, University of Michigan P. Amaya Arbor Photonics, Inc. * Currently with Cymer, Inc 2009 International Workshop
More informationLASER EMISSION IN DIODE-PUMPED Nd:YAG SINGLE-CRYSTAL WAVEGUIDES REALIZED BY DIRECT FEMTOSECOND-LASER WRITING TECHNIQUE
Romanian Reports in Physics, Vol. 65, No. 3, P. 943 953, 2013 Dedicated to Professor Valentin I. Vlad s 70 th Anniversary LASER EMISSION IN DIODE-PUMPED Nd:YAG SINGLE-CRYSTAL WAVEGUIDES REALIZED BY DIRECT
More informationSurvey Report: Laser R&D
Survey Report: Laser R&D Peter Moulton VP/CTO, Q-Peak, Inc. DLA-2011 ICFA Mini-Workshop on Dielectric Laser Accelerators September 15, 2011 SLAC, Menlo Park, CA Outline DLA laser requirements (one version)
More informationUltrafast Optical Physics II (SoSe 2017) Lecture 8, June 2
Ultrafast Optical Physics II (SoSe 2017) Lecture 8, June 2 Class schedule in following weeks: June 9 (Friday): No class June 16 (Friday): Lecture 9 June 23 (Friday): Lecture 10 June 30 (Friday): Lecture
More informationMode-locked Tm,Ho:YAP laser around 2.1 μm
Mode-locked Tm,Ho:YAP laser around. μm K. J. Yang,, * D. C. Heinecke, C. Kölbl, T. Dekorsy, S. Z. Zhao, L. H. Zheng, J. Xu, and G. J. Zhao Department of Physics and Center of Applied Photonics, University
More informationDirectly Chirped Laser Source for Chirped Pulse Amplification
Directly Chirped Laser Source for Chirped Pulse Amplification Input pulse (single frequency) AWG RF amp Output pulse (chirped) Phase modulator Normalized spectral intensity (db) 64 65 66 67 68 69 1052.4
More informationASE Suppression in a Diode-Pumped Nd:YLF Regenerative Amplifier Using a Volume Bragg Grating
ASE Suppression in a Diode-Pumped Nd:YLF Regenerative Amplifier Using a Volume Bragg Grating Spectral density (db) 0 10 20 30 40 Mirror VBG 1053.0 1053.3 1053.6 Wavelength (nm) Frontiers in Optics 2007/Laser
More informationSpatial distribution clamping of discrete spatial solitons due to three photon absorption in AlGaAs waveguide arrays
Spatial distribution clamping of discrete spatial solitons due to three photon absorption in AlGaAs waveguide arrays Darren D. Hudson 1,2, J. Nathan Kutz 3, Thomas R. Schibli 1,2, Demetrios N. Christodoulides
More informationImproving efficiency of CO 2
Improving efficiency of CO 2 Laser System for LPP Sn EUV Source K.Nowak*, T.Suganuma*, T.Yokotsuka*, K.Fujitaka*, M.Moriya*, T.Ohta*, A.Kurosu*, A.Sumitani** and J.Fujimoto*** * KOMATSU ** KOMATSU/EUVA
More informationDesigning for Femtosecond Pulses
Designing for Femtosecond Pulses White Paper PN 200-1100-00 Revision 1.1 July 2013 Calmar Laser, Inc www.calmarlaser.com Overview Calmar s femtosecond laser sources are passively mode-locked fiber lasers.
More informationSUPPLEMENTARY INFORMATION
Electrically pumped continuous-wave III V quantum dot lasers on silicon Siming Chen 1 *, Wei Li 2, Jiang Wu 1, Qi Jiang 1, Mingchu Tang 1, Samuel Shutts 3, Stella N. Elliott 3, Angela Sobiesierski 3, Alwyn
More informationPulse breaking recovery in fiber lasers
Pulse breaking recovery in fiber lasers L. M. Zhao 1,, D. Y. Tang 1 *, H. Y. Tam 3, and C. Lu 1 School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore 639798 Department
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 informationIntegrated disruptive components for 2µm fibre Lasers ISLA. 2 µm Sub-Picosecond Fiber Lasers
Integrated disruptive components for 2µm fibre Lasers ISLA 2 µm Sub-Picosecond Fiber Lasers Advantages: 2 - microns wavelength offers eye-safety potentially higher pulse energy and average power in single
More informationHigh power UV from a thin-disk laser system
High power UV from a thin-disk laser system S. M. Joosten 1, R. Busch 1, S. Marzenell 1, C. Ziolek 1, D. Sutter 2 1 TRUMPF Laser Marking Systems AG, Ausserfeld, CH-7214 Grüsch, Switzerland 2 TRUMPF Laser
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 informationLaser Induced Damage Threshold of Optical Coatings
White Paper Laser Induced Damage Threshold of Optical Coatings An IDEX Optics & Photonics White Paper Ronian Siew, PhD Craig Hanson Turan Erdogan, PhD INTRODUCTION Optical components are used in many applications
More informationSUPPLEMENTARY INFORMATION
Room-temperature continuous-wave electrically injected InGaN-based laser directly grown on Si Authors: Yi Sun 1,2, Kun Zhou 1, Qian Sun 1 *, Jianping Liu 1, Meixin Feng 1, Zengcheng Li 1, Yu Zhou 1, Liqun
More information1. INTRODUCTION 2. LASER ABSTRACT
Compact solid-state laser to generate 5 mj at 532 nm Bhabana Pati*, James Burgess, Michael Rayno and Kenneth Stebbins Q-Peak, Inc., 135 South Road, Bedford, Massachusetts 01730 ABSTRACT A compact and simple
More informationA continuous-wave optical parametric oscillator for mid infrared photoacoustic trace gas detection
A continuous-wave optical parametric oscillator for mid infrared photoacoustic trace gas detection Frank Müller, Alexander Popp, Frank Kühnemann Institute of Applied Physics, University of Bonn, Wegelerstr.8,
More informationDirect diode-pumped Kerr Lens 13 fs Ti:sapphire ultrafast oscillator using a single blue laser diode
Vol. 25, No. 11 29 May 2017 OPTICS EXPRESS 12469 Direct diode-pumped Kerr Lens 13 fs Ti:sapphire ultrafast oscillator using a single blue laser diode STERLING BACKUS,1,2* MATT KIRCHNER,1 CHARLES DURFEE,4
More informationObservation of Wavelength Tuning and Bound States in Fiber Lasers
www.nature.com/scientificreports Received: 18 January 2018 Accepted: 7 March 2018 Published: xx xx xxxx OPEN Observation of Wavelength Tuning and Bound States in Fiber Lasers Yang Xiang, Yiyang Luo, Bowen
More informationThis document is downloaded from DR-NTU, Nanyang Technological University Library, Singapore.
This document is downloaded from DR-NTU, Nanyang Technological University Library, Singapore. Title 80GHz dark soliton fiber laser Author(s) Citation Song, Y. F.; Guo, J.; Zhao, L. M.; Shen, D. Y.; Tang,
More information