Long-term carrier-envelope-phase stabilization of a femtosecond laser by the direct locking method
|
|
- Elaine Copeland
- 5 years ago
- Views:
Transcription
1 Long-term carrier-envelope-phase stabilization of a femtosecond laser by the direct locking method Jae-hwan Lee 1, Yong Soo Lee 1, Juyun Park 1, Tae Jun Yu 2, and Chang Hee Nam 1 1 Dept. of Physics and Coherent X-ray Research Center, Korea Advanced Institute of Science and Technology, Daejeon , Korea 2 Advanced Photonics Research Institute, Gwangju Institute of Science and technology, Gwangju , Korea chnam@kaist.ac.kr Abstract: We have developed a practical solution to implement the direct locking method for the carrier-envelope phase (CEP) stabilization of femtosecond laser pulses and achieved 24-hour CEP stabilization without realignment of any optical components. The direct locking method realizes the CEP stabilization in the time domain by directly quenching the beat signal from an f-to-2f interferometer and, thereby, locking every pulse to a same CEP. We have accomplished the long-term CEP stabilization using commercially available standard feedback electronics, and maintained the CEP stabilization with low jitter without using any frequency-analyzing components, greatly facilitating the accessibility of the CEP stabilization Optical Society of America OCIS codes: ( ) Phase measurement; ( )Femtosecond phenomena; ( )Ultrafast measurements References and links 1. A. Baltǔska, Th. Udem, M. Uiberacker, M. Hentschel, E. Goulielmakis, Ch. Gohle, R. Holzwarth, V. S. Yakovlev, A. Scrinzi, T. W. Hänsch, and F. Krausz, Attosecond control of electronic processes by intense light fields, Nature (London) 421, (2003). 2. G. Sansone, E. Benedetti, F. Calegari, C. Vozzi, L. Avaldi, R. Flammini, L. Poletto, P. Villoresi, C. Altucci, R. Velotta, S. Stagira, S. De Silvestri, and M. Nisoli, Isolated single-cycle attosecond pulses, Science 314, (2006). 3. E. Goulielmakis, V. S. Yakovlev, A. L. Cavalieri, M. Uiberacker, V. Pervak, A. Apolonski, R. Kienberger, U. Kleineberg, and F. Krausz, Attosecond control and measurement: lightwave electronics, Science 317, (2007). 4. Th. Udem, J. Reichert, R.Holzwarth, and T. W. Hänsch, Absolute optical frequency measurement of the cesium D1 line with a mode-locked laser, Phys. Rev. Lett. 82, (1999). 5. D. J. Jones, S. A. Diddams, J. K. Ranka, A. Stentz, R. S. Windeler, J. L. Hall, and S. T. Cundiff, Carrier-envelope phase control of femtosecond mode-locked lasers and direct optical frequency synthesis, Science 288, (2000). 6. M. M. Boyd, A. D. Ludlow, S. Blatt, S. M. Foreman, T. Ido, T. Zelevinsky, and J. Ye, 87 Sr Lattice Clock with Inaccuracy below 10 15, Phys. Rev. Lett. 98, (2007). 7. M. Kakehata, H. Takada, Y. Kobayashi, K. Torizuka, H. Takamiya, K. Nishijima, T. Homma, H. Takahashi, K. Okubo, S. Nakamura, and Y. Koyamada, Carrier-envelope-phase stabilized chirped-pulse amplification system scalable to higher pulse energies, Opt. Express 12, (2004). 8. K. -H. Hong, J. Lee, B. Hou, J. A. Nees, E. Power, and G. A. Mourou, Carrier-envelope phase stabilization of high-contrast femtosecond laser pulses with a relativistic intensity, Appl. Phys. Lett. 89, (2006). (C) 2008 OSA 18 August 2008 / Vol. 16, No. 17 / OPTICS EXPRESS 12624
2 9. E. Gagnon, I. Thomann, A. Paul, A. L. Lytle, S. Backus, M. M. Murnane, H. C. Kapteyn, and A. S. Sandhu, Long-term carrier-envelope phase stability from a grating-based, chirped pulse amplifier, Opt. Lett. 31, (2006). 10. C. Li, E. Moon, H. Mashiko, C. M. Nakamura, P. Ranitovic, C. M. Maharjan, C. L. Cocke, Z. Chang, and G. G. Paulus, Precision control of carrier-envelope phase in grating based chirped pulse amplifiers, Opt. Express 14, (2006). 11. Y. S. Lee, J. H. Sung, and C. H. Nam, T. J. Yu, and K. -H. Hong, Novel method for carrier-envelope-phase stabilization of femtosecond laser pulses, Opt. Express 13, (2005). 12. T. J. Yu, K. -H. Hong, H. G. Choi, J. H. Sung, I. W. Choi, D. K. Ko, J. Lee, J. Kim, D. E. Kim, and C. H. Nam, Pricise and long-term stabilization of the carrier-envelope phase of femtosecond laser pulses using an enhanced direct locking technique, Opt. Express 15, (2007). 13. J. -h. Lee, Y. S. Lee, J. Park, T. J. Yu, and C. H. Nam Implementation of the direct locking method for long-term carrier-envelope phase stabilization of a khz femtosecond laser, in preparation. 14. H. R. Telle, G. Steinmeyer, A. E. Dunlop, J. Stenger, D. H. Sutter, and U. Keller, Carrier-envelope offset phase control: A novel concept for absolute optical frequency measurement and ultrashort pulse generation, Appl. Phys. B, 69, , (1999). 15. K. -H. Hong, T. J. Yu, Y. S. Lee, C. H. Nam, and R. S. Windeler, Measurement of the shot-to-shot carrierenvelope phase slip of femtosecond laser pulses, J. Opt. Soc. Kor. 42, (2003). 16. J. H. Sung, J. Y. Park, T. Imran, Y. S. Lee, and C. H. Nam, Generation of 0.2-TW5.5-fs optical pulses at 1 khz using a differentially pumped hollow-fiber chirped-mirror compressor, Appl. Phys. B 82, 5 8 (2005). 17. J. H. Sung, K. -H. Hong, and C. H. Nam, High-power femtosecond Ti:sapphire laser at 1 khz with a long cavity femtosecond oscillator, J. Opt. Soc. Kor. 7, (2003). 18. L. Xu, Ch. Spielmann, A. Poppe, T. Brabec, F. Krausz, and T. W. Hänsch, Route to phase control of ultrashort light pulses, Opt. Lett. 21, , (1996). 19. J. Bechhoefer, Feedback for physicists: A tutorial essay on control, Rev. Mod. Phys. 77, (2005). 1. Introduction Carrier-envelope phase (CEP) stabilization of femtosecond laser pulses has become one of crucial techniques in attosecond science [1-3] as well as in frequency metrology [4-6]. The CEP stabilization technique has been developed on the basis of the phase-locked loop (PLL) method [7-10], operating in the frequency domain, and widely used for the generation of a stable optical frequency comb. The PLL method stabilizes pulse-to-pulse CEP slip to be constant. On the other hand, the direct locking (DL) method is a different kind of CEP stabilization technique operating in the time domain [11]. DL directly uses the beat signal from an f -to-2 f interferometer as an error signal and quenches it through a negative feedback. As the DL method generates CEP-stabilized pulses with zero CEP slip, the CEP of every pulse is same. It is, thus, beneficial to applications requiring femtosecond pulses with identical CEP, compared to the conventional PLL method necessitating a special scheme to achieve zero CEP slip [5]. Successful operation of DL has been confirmed with an out-of-loop measurement [11]. Recently, the DL technique has been improved further using homodyne balanced detection (HBD) and double feedback techniques, achieving low CEP jitter and long-term CEP stabilization [12]. Furthermore, the CEP of amplified pulses in a khz femtosecond Ti:Sapphire laser was successfully stabilized using DL and applied to high harmonic generation with CEP-stabilized femtosecond laser pulses [13]. In this paper, we present a practical solution to implement the DL method for the CEP stabilization of femtosecond laser pulses, achieving continuous CEP stabilization for 24 hours without any optical realignment. The CEP stabilization is realized using commercially available standard feedback electronics containing the functions of proportional, integral, and derivative (PID) operations. By testing PID functions an optimum solution to realize the DL has been obtained. In addition we show that the DL can be realized without using any frequency-related equipment such as an RF spectrum analyzer, making it also an economical solution for CEP stabilization of femtosecond lasers. (C) 2008 OSA 18 August 2008 / Vol. 16, No. 17 / OPTICS EXPRESS 12625
3 2. Practical implementation of the direct locking method CEP stabilization means the control of pulse-to-pulse CEP variation of a femtosecond laser. The information on CEP variation of a femtosecond laser can be obtained from an f -to-2f interferometer [14, 15]. The DL method first measures a beat signal between f 2n and 2f n components of an octave-spanned laser spectrum due to CEP variation, in which f 2n and 2f n are the fundamental and frequency-doubled 532-nm components of the laser spectrum, respectively. The beat signal is then sent to a feedback servo as an error signal. The CEP stabilization by the DL method is achieved by quenching the beat signal by the feedback servo. We have realized the feedback servo using PID controllers, commonly used for stabilizing system operation, such as constant temperature maintenance. Fig. 1. Schematic diagram of the direct locking setup for CEP stabilization. (AOM: acoustooptic modulator, PID: analog PID controller, PCF: photonic crystal fiber, DB: dichroic beam splitter, SHG: second-harmonic generation crystal, HWP: half-wave plate, BPF: band-pass filter, PBS: polarizing beam splitter at 532 nm, APD: avalanche photodiode, BPD: balanced PIN photodiode) We applied DL for the CEP stabilization of a femtosecond oscillator with a set of intracavity prisms. Figure 1 shows the schematic diagram of the direct locking setup that consists of the f -to-2f interferometer, photodiodes, and locking servo [11]. For the generation of an octave spanning spectrum a tapered photonic crystal fiber (Femtowhite 800, Crystal-fibre) was used, which greatly improved the alignment sensitivity compared to a bare photonic crystal fiber. The HBD setup in Fig. 1 optically eliminates any signal fluctuations, not originating from CEP variation, for the generation of a pure beat signal. The half-wave plate and polarizing beam splitters (PBS3, PBS4) were installed in front of the balanced photodiodes (BPD) to realize HBD. The pure beat signal generated from BPD was then sent to the feedback servo (PID1). The feedback signal, sent to an acousto-optic modulator (AOM), adjusted the pump power to the oscillator, and the CEP stabilization was achieved by directly quenching the beat signal [15, 18]. The generation of the beat signal requires the overlap of the f 2n and 2f n components in space and time. The spatial overlap was obtained by careful alignment, but the temporal overlap could be found by cautious monitoring of the beat signal with an oscilloscope. Figure 2 shows how (C) 2008 OSA 18 August 2008 / Vol. 16, No. 17 / OPTICS EXPRESS 12626
4 Fig. 2. Monitoring the beat signal, using APD in Fig. 1 and an oscilloscope, to match the time delay between f and 2f signals in the f -to-2f interferometer. The beat signal changed from (a) to (b) to (c) as the time delay became better matched. the temporal overlap can be checked with the oscilloscope. The leakage beam containing the 2f n and f 2n components from PBS3 was detected using an avalanche photodiode (APD) with 100 MHz bandwidth. When the f 2n and 2f n signals did not temporally overlap, a pulse train with the laser repetition rate appeared, as shown in Fig. 2(a). As the time delay was adjusted, the pulse train exhibited a modulation when the two signals became temporally overlapped, as shown in Fig. 2(b). In this case the modulation frequency was too high for feedback control. In order to make the frequency within the accessible feedback frequency of 100 khz, the insertion of the intracavity prism was adjusted. Figure 2(c) shows the pulse train with a modulation frequency of about 2.5 MHz. With further adjustment of the prism insertion the modulation frequency could be reduced within the feedback control frequency. This is another benefit of the DL method achieved without using an RF spectrum analyzer. With sufficiently low frequency modulation below 100 khz the direct locking servo was activated. For the feedback control an analog PID controller (SIM960, SRS) with 100-kHz operational bandwidth was used. The pure beat signal from the BPD in Fig. 1 was supplied as an error signal, ε. The feedback signal (V out ) generated from the PID controller can be expressed as follows [19]: V out = P(ε + I εdt + D dε dt )+V of f, (1) where P, I, and D are proportional, integral, and derivative gain, respectively, and V of f is an offset voltage. Using only the P function the error signal can be quenched, but it may generate a non-zero error that can be corrected using the I function. When the non-zero error contains rapidly varying component, it can be corrected by the D function. The result of the feedback control operation is shown in Fig. 3. The pure beat signal in Fig. 3(a) was generated using the (C) 2008 OSA 18 August 2008 / Vol. 16, No. 17 / OPTICS EXPRESS 12627
5 0.3 (a) 0.0 Beat Sig. (V) (b) (c) Time (ms) Fig. 3. Quenching of the beating signal using standard feedback electronics. (a) Pure beating signal monitored by the BPD in the f -to-2f interferometer. Feedback signals obtained using only the P function of the PID controller (b) and using the P and I functions (c). HBD technique. As the beat frequency became less than 100 khz, it could be measured with the BPD consisting of two PIN photodiodes; it is another benefit of the DL method as compared to the conventional PLL method requiring high sensitivity APD s due to its operation at much higher frequency. When the feedback was performed with only the P function, the quenched beat signal contained low-frequency fluctuation, as shown in Fig. 3(b). This fluctuation could be stabilized using the I function, as shown in Fig. 3(c), without further applying the D function. Angle (rad) 1 0 (a) (b) 1 0 Angle (rad) Angle (rad) (c) Time (ms) Time ( s) Time (ms) (d) Time (s) Accumulated phase jitter (mrad) Fig. 4. CEP jitter measured with different observation duration. The stabilized beat signals measured for 100 us (a), 1 ms (b), and 10 ms (c). (d) Change of the accumulated CEP jitter with different observation duration. (C) 2008 OSA 18 August 2008 / Vol. 16, No. 17 / OPTICS EXPRESS 12628
6 In the DL method, the data analysis is simple and intuitive. CEP jitter can be estimated simply by comparing the BPD signals before and after locking. As the beat signal before locking provides a full sinusoidal swing, the CEP jitter can be easily obtained by converting each point of the beat signal after locking to corresponding angular value [11]. In order to investigate the accumulated phase jitter of CEP-stabilized laser pulses, the root-mean-square CEP jitter was measured with different observation duration, as shown in Fig 4. The CEP jitter increased from 31 mrad for 100-μs observed duration to 35 mrad for 1ms, and to 36 mrad for 10 ms, as shown in Figs. 4 (a), (b), and (c), respectively. The accumulated phase jitter saturated to about 37 mrad for the observed duration of 100 ms or longer, as shown in the Fig. 4 (d). In the DL method this kind of analysis can be done without using a vector spectrum analyzer or frequency counter, one of strong advantages of the DL method. 3. Long-term CEP stabilization Long-term CEP stability is crucial for actual applications of CEP-stabilized femtosecond lasers. In the free running mode, the CEP variation contains a slow drift as well as fast variation. The DL quenches both components, but the slow drift may cause the feedback signal to AOM to drift to one direction, eventually disrupting the CEP locking or even the mode-locking of the oscillator itself. The large pump power modulation by AOM was thus the most severe obstacle in the long-term CEP stabilization. This problem has been resolved using the double feedback loop that separately controls fast variation and slow drift using two feedback loops [12]. We have realized the double feedback loop using two PID controllers (PID1 and PID2), as shown in Fig. 1. The fast CEP variation was compensated by the first feedback servo connected to AOM, but continuous CEP drift can cause too large modulation of AOM. Figure 5(a) show the feedback signal to AOM (black line) and the beat signal measured with the detector BPD (gray line) obtained only with the feedback servo PID1. The feedback signal to AOM was continuously decreased and then the CEP stabilization was interrupted after about 20 minutes. In this case the strong modulation of AOM disrupted the CEP locking. The large modulation of AOM can be prevented by compensating for the slow drift component with the second feedback servo controlling the intracavity prism insertion. Instead of compensating for CEP variation only with the first feedback servo that may cause too large pumping power modulation, the slow CEP drift was compensated for by adjusting the intracavity prism insertion. For the latter the second PID controller (PID2) was employed with the P and I feedback functions for the prism insertion control. Since the drift was not so fast, a low cutoff frequency in the I operation was used. Figure 5(b) shows the change of the feedback signal to AOM with different cutoff frequencies. In the case of 0.3-Hz cutoff frequency, the feedback signal contained a drifting component. With 3-Hz cutoff frequency it was improved, but the feedback signal still shows some variation. So the cutoff frequency was increased to find the optimum frequency of 10 Hz at which the feedback signal to AOM showed fluctuation around a steady value. Figure 5(c) presents the result of 24-hour CEP stabilization achieved without realignment of any optical components. It shows the feedback signals to AOM (black line) for pumping power control and to PZT for the control of prism insertion (gray line). The feedback signal to PZT was continuously adjusted so as to stably maintain the feedback signal to AOM, allowing long-term CEP stabilization. The CEP stabilization for a whole day is a clear demonstration of the robustness of the DL method. As a consequence, the capability of long-term CEP stabilization will make the DL method a powerful tool in investigating lightmatter interactions with CEP-stabilized laser pulses, such as attosecond science. In addition the DL method has a good potential also in frequency metrology, since the control of the comb frequency can be achieved by adjusting the cavity length of the oscillator. (C) 2008 OSA 18 August 2008 / Vol. 16, No. 17 / OPTICS EXPRESS 12629
7 Fig hour CEP stabilization achieved by employing the double feedback loop. (a) Performance of the CEP stabilization obtained by controlling only AOM. (b) Optimization of the cutoff frequency in the I feedback. (c) Continuous CEP stabilization for 24 hours. Feedback signals to AOM (black) and to PZT (gray) are shown during the 24-hour CEP stabilization. 4. Conclusion Based on the direct locking method CEP stabilization of femtosecond laser pulses for a whole day has been demonstrated. The direct CEP locking that stabilizes CEP of every laser pulse to a same CEP value was realized using two analog PID controllers. The fast CEP variation was stabilized by the first PID controller connected to the AOM, and the slow CEP drift was managed by employing the second PID controller to adjust the intracavity prism insertion. It is noted that the CEP stabilization was achieved without using any frequency-analyzing equipment such as RF spectrum analyzer. As a consequence, the direct locking method is a very practical solution for the CEP stabilization of a femtosecond laser, greatly improving the accessibility of CEP stabilization, and will greatly benefit such areas as attosecond physics. (C) 2008 OSA 18 August 2008 / Vol. 16, No. 17 / OPTICS EXPRESS 12630
8 Acknowledgment This work was supported by the Korea Science and Engineering Foundation through the Creative Research Initiative Program. (C) 2008 OSA 18 August 2008 / Vol. 16, No. 17 / OPTICS EXPRESS 12631
Precision control of carrier-envelope phase in grating based chirped pulse amplifiers
Precision control of carrier-envelope phase in grating based chirped pulse amplifiers Chengquan Li, Eric Moon, Hiroki Mashiko, Christopher M. Nakamura, Predrag Ranitovic, Chakra M. Maharjan, C. Lewis Cocke,
More informationControl of the frequency comb from a modelocked Erbium-doped fiber laser
Control of the frequency comb from a modelocked Erbium-doped fiber laser Jens Rauschenberger*, Tara M. Fortier, David J. Jones, Jun Ye, and Steven T. Cundiff JILA, University of Colorado and National Institute
More informationOptical phase-coherent link between an optical atomic clock. and 1550 nm mode-locked lasers
Optical phase-coherent link between an optical atomic clock and 1550 nm mode-locked lasers Kevin W. Holman, David J. Jones, Steven T. Cundiff, and Jun Ye* JILA, National Institute of Standards and Technology
More informationCarrier-envelope phase stabilization of modelocked lasers
Carrier-envelope phase stabilization of modelocked lasers Tara M. Fortier, David J. Jones, Jun Ye and Steven T. Cundiff JILA, University of Colorado and National Institute of Standards and Technology,
More informationNonlinear Optics (WiSe 2015/16) Lecture 9: December 11, 2015
Nonlinear Optics (WiSe 2015/16) Lecture 9: December 11, 2015 Chapter 9: Optical Parametric Amplifiers and Oscillators 9.8 Noncollinear optical parametric amplifier (NOPA) 9.9 Optical parametric chirped-pulse
More informationControl and precise measurement of carrier-envelope phase dynamics
Appl. Phys. B 78, 5 12 (2004) DOI: 10.1007/s00340-003-1307-3 Applied Physics B Lasers and Optics s. witte r.t. zinkstok w. hogervorst k.s.e. eikema Control and precise measurement of carrier-envelope phase
More informationtaccor Optional features Overview Turn-key GHz femtosecond laser
taccor Turn-key GHz femtosecond laser Self-locking and maintaining Stable and robust True hands off turn-key system Wavelength tunable Integrated pump laser Overview The taccor is a unique turn-key femtosecond
More informationStatus on Pulsed Timing Distribution Systems and Implementations at DESY, FERMI and XFEL
FLS Meeting March 7, 2012 Status on Pulsed Timing Distribution Systems and Implementations at DESY, FERMI and XFEL Franz X. Kärtner Center for Free-Electron Laser Science, DESY and Department of Physics,
More informationThe Proposed MIT X-ray Laser Facility: Laser Seeding to Achieve the Transform Limit
MIT X-ray Laser Project The Proposed MIT X-ray Laser Facility: Laser Seeding to Achieve the Transform Limit 30 or more independent beamlines Fully coherent milli-joule pulses at khz rates Wavelength range
More informationCarrier-Envelope Phase Control of Femtosecond Mode-Locked Lasers and Direct Optical Frequency Synthesis
Carrier-Envelope Phase Control of Femtosecond Mode-Locked Lasers and Direct Optical Frequency Synthesis David J. Jones, 1 * Scott A. Diddams, 1 * Jinendra K. Ranka, 2 Andrew Stentz, 2 Robert S. Windeler,
More informationSuppression of amplitude-to-phase noise conversion in balanced optical-microwave phase detectors
Suppression of amplitude-to-phase noise conversion in balanced optical-microwave phase detectors Maurice Lessing, 1,2 Helen S. Margolis, 1 C. Tom A. Brown, 2 Patrick Gill, 1 and Giuseppe Marra 1* Abstract:
More informationAbsolute frequency measurement of unstable lasers with optical frequency combs
Absolute frequency measurement of unstable lasers with optical frequency combs N. Beverini a, N. Poli b, D. Sutyrin a,b, F.-Y.Wang b, M. Schioppo b, M. G. Tarallo b, and G. M. Tino b a Dipartimento di
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 informationHow to build an Er:fiber femtosecond laser
How to build an Er:fiber femtosecond laser Daniele Brida 17.02.2016 Konstanz Ultrafast laser Time domain : pulse train Frequency domain: comb 3 26.03.2016 Frequency comb laser Time domain : pulse train
More informationHighly Phase Stable Mode-Locked Lasers
1002 IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS, VOL. 9, NO. 4, JULY/AUGUST 2003 Highly Phase Stable Mode-Locked Lasers Tara M. Fortier, David J. Jones, Jun Ye, and S. T. Cundiff Abstract The
More informationGenerating coherent broadband continuum soft-x-ray radiation by attosecond ionization gating
Generating coherent broadband continuum soft-x-ray radiation by attosecond ionization gating Thomas Pfeifer, Aurélie Jullien, Mark J. Abel, Phillip M. Nagel, Lukas Gallmann, Daniel M. Neumark, Stephen
More informationSUPPLEMENTARY INFORMATION DOI: /NPHOTON
Supplementary Methods and Data 1. Apparatus Design The time-of-flight measurement apparatus built in this study is shown in Supplementary Figure 1. An erbium-doped femtosecond fibre oscillator (C-Fiber,
More informationCarrier envelope-offset dynamics and stabilization of femtosecond pulses
Appl. Phys. B 74 [Suppl.], S35 S42 (2002) DOI: 10.1007/s00340-002-0898-4 Applied Physics B Lasers and Optics f.w. helbing 1, g. steinmeyer 1 j. stenger 2 h.r. telle 2 u. keller 1 Carrier envelope-offset
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 informationVELA PHOTOINJECTOR LASER. E.W. Snedden, Lasers and Diagnostics Group
VELA PHOTOINJECTOR LASER E.W. Snedden, Lasers and Diagnostics Group Contents Introduction PI laser step-by-step: Ti:Sapphire oscillator Regenerative amplifier Single-pass amplifier Frequency mixing Emphasis
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 informationUltrahigh precision synchronization of optical and microwave frequency sources
Journal of Physics: Conference Series PAPER OPEN ACCESS Ultrahigh precision synchronization of optical and microwave frequency sources To cite this article: A Kalaydzhyan et al 2016 J. Phys.: Conf. Ser.
More informationThe Frequency Comb (R)evolution. Thomas Udem Max-Planck Institut für Quantenoptik Garching/Germany
The Frequency Comb (R)evolution Thomas Udem Max-Planck Institut für Quantenoptik Garching/Germany 1 The History of the Comb Derivation of the Comb Self-Referencing 2 3 Mode Locked Laser as a Comb Generator
More informationIntegrated self-referenced frequency-comb laser based on a combination of fiber and waveguide technology
Integrated self-referenced frequency-comb laser based on a combination of fiber and waveguide technology I. Hartl, G. Imeshev and M. E. Fermann IMRA America, Inc., 1044 Woodridge Ave., Ann Arbor, MI 48105,
More informationFemtosecond-stability delivery of synchronized RFsignals to the klystron gallery over 1-km optical fibers
FEL 2014 August 28, 2014 THB03 Femtosecond-stability delivery of synchronized RFsignals to the klystron gallery over 1-km optical fibers Kwangyun Jung 1, Jiseok Lim 1, Junho Shin 1, Heewon Yang 1, Heung-Sik
More informationCarrier envelope phase effects on polarization gated attosecond spectra
Carrier envelope phase effects on polarization gated attosecond spectra Mahendra Man Shakya, S.Gilbertson, Hiroki Mashiko, C.Nakamura,C. Li, E.Moon, Z.Duan, Jason Tackett, and Zenghu Chang a J.R.Macdonald
More informationA transportable optical frequency comb based on a mode-locked fibre laser
A transportable optical frequency comb based on a mode-locked fibre laser B. R. Walton, H. S. Margolis, V. Tsatourian and P. Gill National Physical Laboratory Joint meeting for Time and Frequency Club
More informationSuppression of Rayleigh-scattering-induced noise in OEOs
Suppression of Rayleigh-scattering-induced noise in OEOs Olukayode Okusaga, 1,* James P. Cahill, 1,2 Andrew Docherty, 2 Curtis R. Menyuk, 2 Weimin Zhou, 1 and Gary M. Carter, 2 1 Sensors and Electronic
More informationCarrier-Envelope Phase Stabilization of Single and Multiple Femtosecond Lasers
Carrier-Envelope Phase Stabilization of Single and Multiple Femtosecond Lasers David J. Jones, Steve T. Cundiff, Tara M. Fortier, John L. Hall, and Jun Ye JILA, University of Colorado and National Institute
More informationUsing GNSS for optical frequency and wavelength measurements
Using GNSS for optical frequency and wavelength measurements Stephen Lea, Guilong Huang, Helen Margolis, and Patrick Gill National Physical Laboratory Teddington, Middlesex TW11 0LW, UK outline of talk
More informationFemtosecond Synchronization of Laser Systems for the LCLS
Femtosecond Synchronization of Laser Systems for the LCLS, Lawrence Doolittle, Gang Huang, John W. Staples, Russell Wilcox (LBNL) John Arthur, Josef Frisch, William White (SLAC) 26 Aug 2010 FEL2010 1 Berkeley
More information레이저의주파수안정화방법및그응용 박상언 ( 한국표준과학연구원, 길이시간센터 )
레이저의주파수안정화방법및그응용 박상언 ( 한국표준과학연구원, 길이시간센터 ) Contents Frequency references Frequency locking methods Basic principle of loop filter Example of lock box circuits Quantifying frequency stability Applications
More informationControl of coherent light and its broad applications
Control of coherent light and its broad applications Jun Ye, R. J. Jones, K. Holman, S. Foreman, D. J. Jones, S. T. Cundiff, J. L. Hall, T. M. Fortier, and A. Marian JILA, National Institute of Standards
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 informationTIME-PRESERVING MONOCHROMATORS FOR ULTRASHORT EXTREME-ULTRAVIOLET PULSES
TIME-PRESERVING MONOCHROMATORS FOR ULTRASHORT EXTREME-ULTRAVIOLET PULSES Luca Poletto CNR - Institute of Photonics and Nanotechnologies Laboratory for UV and X-Ray Optical Research Padova, Italy e-mail:
More informationPLL Synchronizer User s Manual / Version 1.0.6
PLL Synchronizer User s Manual / Version 1.0.6 AccTec B.V. Den Dolech 2 5612 AZ Eindhoven The Netherlands phone +31 (0) 40-2474321 / 4048 e-mail AccTecBV@tue.nl Contents 1 Introduction... 3 2 Technical
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 informationAttosecond control of optical waveforms
Attosecond control of optical waveforms To cite this article: Takao Fuji et al 25 New J. Phys. 7 116 View the article online for updates and enhancements. Related content - Direct measurement and analysis
More informationRecent Progress in Pulsed Optical Synchronization Systems
FLS 2010 Workshop March 4 th, 2010 Recent Progress in Pulsed Optical Synchronization Systems Franz X. Kärtner Department of Electrical Engineering and Computer Science and Research Laboratory of Electronics,
More informationAbsolute frequency measurement of the iodine-stabilized He Ne laser at 633 nm
Appl. Phys. B 72, 221 226 (2001) / Digital Object Identifier (DOI) 10.1007/s003400000473 Applied Physics B Lasers and Optics Absolute frequency measurement of the iodine-stabilized He Ne laser at 633 nm
More informationSupplementary Information. All-fibre photonic signal generator for attosecond timing. and ultralow-noise microwave
1 Supplementary Information All-fibre photonic signal generator for attosecond timing and ultralow-noise microwave Kwangyun Jung & Jungwon Kim* School of Mechanical and Aerospace Engineering, Korea Advanced
More informationSYNCHRONIZATION SYSTEMS FOR ERLS
SYNCHRONIZATION SYSTEMS FOR ERLS Stefan Simrock, Frank Ludwig, Holger Schlarb DESY Notkestr. 85, 22603 Hamburg News, Germany Corresponding author: Stefan Simrock DESY Notkestr. 85 22603 Hamburg, Germany
More informationIsolated sub-30-attosecond pulse generation using a multicycle two-color chirped laser and a static electric field
Chin. Phys. B Vol., No. 4 (14) 4 Isolated sub--attosecond pulse generation using a multicycle two-color chirped laser and a static electric field Zhang Gang-Tai( 张刚台 ) Department of Physics and Information
More informationJungwon Kim, Jonathan A. Cox, Jian J. Chen & Franz X. Kärtner. Department of Electrical Engineering and Computer Science and Research Laboratory
1 Supplementary Information Drift-free femtosecond timing synchronization of remote optical and microwave sources with better than 10-19 -level stability Jungwon Kim, Jonathan A. Cox, Jian J. Chen & Franz
More informationHigh Power and Energy Femtosecond Lasers
High Power and Energy Femtosecond Lasers PHAROS is a single-unit integrated femtosecond laser system combining millijoule pulse energies and high average powers. PHAROS features a mechanical and optical
More informationPhase-coherent synthesis of optical frequencies and waveforms
Appl. Phys. B 74 [Suppl.], S27 S34 (2002) DOI: 10.1007/s00340-002-0905-9 Applied Physics B Lasers and Optics j. ye s.t. cundiff s. foreman t.m. fortier j.l. hall k.w. holman d.j. jones j.d. jost h.c. kapteyn
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 informationCarrier-Envelope Phase Stabilization of Modelocked Lasers
Carrier-Envelope Phase Stabilization of Modelocked Lasers Tara M. Fortier, David J. Jones, Scott A. Diddams *, John L. Hall, Jun Ye and Steven T. Cundiff JILA, University of Colorado and the National Institute
More informationSetup of the four-wavelength Doppler lidar system with feedback controlled pulse shaping
Setup of the four-wavelength Doppler lidar system with feedback controlled pulse shaping Albert Töws and Alfred Kurtz Cologne University of Applied Sciences Steinmüllerallee 1, 51643 Gummersbach, Germany
More informationDiode Laser Control Electronics. Diode Laser Locking and Linewidth Narrowing. Rudolf Neuhaus, Ph.D. TOPTICA Photonics AG
Appl-1012 Diode Laser Control Electronics Diode Laser Locking and Linewidth Narrowing Rudolf Neuhaus, Ph.D. TOPTICA Photonics AG Introduction Stabilized diode lasers are well established tools for many
More informationGeneration and Control of Ultrashort Supercontinuum Pulses
Generation and Control of Ultrashort Supercontinuum Pulses Franziska Kirschner, Mansfield College, University of Oxford September 10, 2014 Abstract Supercontinuum laser pulses in the visible and near infrared
More informationReal-time pulse length measurement of few-cycle laser pulses using above-threshold ionization
Real-time pulse length measurement of few-cycle laser pulses using above-threshold ionization A. M. Sayler, 1,2 Tim Rathje, 1,2 W. Müller, 1 Ch. Kürbis, 1 Klaus Rühle, 1 Gero Stibenz, 3 and G. G. Paulus
More informationHigh-Energy 6.2-fs Pulses for Attosecond Pulse Generation
Laser Physics, Vol. 15, No. 6, 25, pp. 838 842. Original Text Copyright 25 by Astro, Ltd. Copyright 25 by MAIK Nauka /Interperiodica (Russia). ATTOSECOND SCIENCE AND TECHNOLOGY High-Energy 6.2-fs Pulses
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 informationSupercontinuum generation and carrier envelope offset frequency measurement in a tapered single-mode fiber
Supercontinuum generation and carrier envelope offset frequency measurement in a tapered single-mode fiber Long Zhang, 1 Hainian Han, 1, a Yanying Zhao, 2 Lei Hou, 1 Zijiao Yu, 1 Zhiyi Wei 1, b 1 Beijing
More informationTIME AND FREQUENCY ACTIVITIES AT THE CSIR NATIONAL METROLOGY LABORATORY
TIME AND FREQUENCY ACTIVITIES AT THE CSIR NATIONAL METROLOGY LABORATORY E. L. Marais and B. Theron CSIR National Metrology Laboratory PO Box 395, Pretoria, 0001, South Africa Tel: +27 12 841 3013; Fax:
More informationCARRIER-ENVELOPE PHASE STABILIZATION OF GRATING-BASED CHIRPED-PULSE AMPLIFIERS ERIC WAYNE MOON. B.S., Baker University, 2003
CARRIER-ENVELOPE PHASE STABILIZATION OF GRATING-BASED CHIRPED-PULSE AMPLIFIERS by ERIC WAYNE MOON B.S., Baker University, 2003 AN ABSTRACT OF A DISSERTATION submitted in partial fulfillment of the requirements
More informationDirect measurement and analysis of the carrier-envelope phase in light pulses approaching the single-cycle regime
Direct measurement and analysis of the carrier-envelope phase in light pulses approaching the single-cycle regime P Dombi 1,7, A Apolonski 1,2, Ch Lemell 3, G G Paulus 4, M Kakehata 5, R Holzwarth 6,ThUdem
More informationXUV FREQUENCY COMB SPECTROSCOPY
1 XUV FREQUENCY COMB SPECTROSCOPY C. GOHLE, D. Z. KANDULA, T. J. PINKERT, W. UBACHS, and K.S.E. EIKEMA Laser Centre, Vrije Universiteit, De Boelelaan 1081, 1081 HV, Amsterdam, The Netherlands E-mail: KSE.Eikema@few.vu.nl
More informationSTABILIZATION OF THE ABSOLUTE FREQUENCY AND PHASE OF A COMPACT, LOW JITTER MODELOCKED SEMICONDUCTOR DIODE LASER
AFRL-SN-RS-TR-2005-63 Final Technical Report March 2005 STABILIZATION OF THE ABSOLUTE FREQUENCY AND PHASE OF A COMPACT, LOW JITTER MODELOCKED SEMICONDUCTOR DIODE LASER University of Central Florida APPROVED
More informationR. J. Jones College of Optical Sciences OPTI 511L Fall 2017
R. J. Jones College of Optical Sciences OPTI 511L Fall 2017 Active Modelocking of a Helium-Neon Laser The generation of short optical pulses is important for a wide variety of applications, from time-resolved
More informationStability of a Fiber-Fed Heterodyne Interferometer
Stability of a Fiber-Fed Heterodyne Interferometer Christoph Weichert, Jens Flügge, Paul Köchert, Rainer Köning, Physikalisch Technische Bundesanstalt, Braunschweig, Germany; Rainer Tutsch, Technische
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 informationCharacteristics of point-focus Simultaneous Spatial and temporal Focusing (SSTF) as a two-photon excited fluorescence microscopy
Characteristics of point-focus Simultaneous Spatial and temporal Focusing (SSTF) as a two-photon excited fluorescence microscopy Qiyuan Song (M2) and Aoi Nakamura (B4) Abstracts: We theoretically and experimentally
More informationSpider Pulse Characterization
Spider Pulse Characterization Spectral and Temporal Characterization of Ultrashort Laser Pulses The Spider series by APE is an all-purpose and frequently used solution for complete characterization of
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 power single frequency 780nm laser source generated from frequency doubling of a seeded fiber amplifier in a cascade of PPLN crystals
High power single frequency 780nm laser source generated from frequency doubling of a seeded fiber amplifier in a cascade of PPLN crystals R. J. Thompson, M. Tu, D. C. Aveline, N. Lundblad, L. Maleki Jet
More informationDifferential measurement scheme for Brillouin Optical Correlation Domain Analysis
Differential measurement scheme for Brillouin Optical Correlation Domain Analysis Ji Ho Jeong, 1,2 Kwanil Lee, 1,4 Kwang Yong Song, 3,* Je-Myung Jeong, 2 and Sang Bae Lee 1 1 Center for Opto-Electronic
More informationHigh stability multiplexed fibre interferometer and its application on absolute displacement measurement and on-line surface metrology
High stability multiplexed fibre interferometer and its application on absolute displacement measurement and on-line surface metrology Dejiao Lin, Xiangqian Jiang and Fang Xie Centre for Precision Technologies,
More informationDevelopment of high average power fiber lasers for advanced accelerators
Development of high average power fiber lasers for advanced accelerators Almantas Galvanauskas Center for Ultrafast Optical Science (CUOS), University of Michigan 16 th Advanced Accelerator Concepts Workshop
More informationSimultaneous measurement of two different-color ultrashort pulses on a single shot
Wong et al. Vol. 29, No. 8 / August 2012 / J. Opt. Soc. Am. B 1889 Simultaneous measurement of two different-color ultrashort pulses on a single shot Tsz Chun Wong,* Justin Ratner, and Rick Trebino School
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 informationEfficient second-harmonic generation of CW radiation in an external optical cavity using non-linear crystal BIBO
fficient second-harmonic generation of CW radiation in an external optical cavity using non-linear crystal BIBO Sergey KOBTSV*, Alexander ZAVYALOV Novosibirsk State University, Laser Systems Laboratory,
More informationAbsolute Distance Measurements Using the Optical Comb of a Femtosecond Pulse Laser
/ OCTOBER 007 INTERNATIONAL INTERNATIONAL JOURNAL JOURNAL OF PRECISION OF PRECISION ENGINEERING ENGINEERING AND MANUFACTURING AND MANUFACTURING Vol. 8, No.4, Vol. pp.-6 8 No.4 Absolute Distance Measurements
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 informationCoherent power combination of two Masteroscillator-power-amplifier. semiconductor lasers using optical phase lock loops
Coherent power combination of two Masteroscillator-power-amplifier (MOPA) semiconductor lasers using optical phase lock loops Wei Liang, Naresh Satyan and Amnon Yariv Department of Applied Physics, MS
More informationPulse compression with supercontinuum generation in microstructure fibers
Schenkel et al. Vol. 22, No. 3/March 2005/J. Opt. Soc. Am. B 687 Pulse compression with supercontinuum generation in microstructure fibers Birgit Schenkel, Rüdiger Paschotta, and Ursula Keller Department
More informationInstallation and Characterization of the Advanced LIGO 200 Watt PSL
Installation and Characterization of the Advanced LIGO 200 Watt PSL Nicholas Langellier Mentor: Benno Willke Background and Motivation Albert Einstein's published his General Theory of Relativity in 1916,
More informationBroadband 2.12 GHz Ti:sapphire laser compressed to 5.9 femtoseconds using MIIPS
Broadband 2.12 GHz Ti:sapphire laser compressed to 5.9 femtoseconds using MIIPS Giovana T. Nogueira 1, Bingwei Xu 2, Yves Coello 2, Marcos Dantus 2, and Flavio C. Cruz 1* 1 Gleb Wataghin Physics Institute,
More informationA n optical frequency comb (OFC), a light source whose spectrum consists of a series of discrete, equally
OPEN SUBJECT AREAS: MICROWAVE PHOTONICS OPTOELECTRONIC DEVICES AND COMPONENTS Received 17 July 2013 Accepted 29 November 2013 Published 16 December 2013 Correspondence and requests for materials should
More informationTIMING DISTRIBUTION AND SYNCHRONIZATION COMPLETE SOLUTIONS FROM ONE SINGLE SOURCE
TIMING DISTRIBUTION AND SYNCHRONIZATION COMPLETE SOLUTIONS FROM ONE SINGLE SOURCE link stabilization FEMTOSECOND SYNCHRONIZATION FOR LARGE-SCALE FACILITIES TAILOR-MADE FULLY INTEGRATED SOLUTIONS The Timing
More informationRF-Based Detector for Measuring Fiber Length Changes with Sub-5 Femtosecond Long-Term Stability.
RF-Based Detector for Measuring Fiber Length Changes with Sub-5 Femtosecond Long-Term Stability. J. Zemella 1, V. Arsov 1, M. K. Bock 1, M. Felber 1, P. Gessler 1, K. Gürel 3, K. Hacker 1, F. Löhl 1, F.
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 informationBroadband dispersion-free optical cavities based on zero group delay dispersion mirror sets
Broadband dispersion-free optical cavities based on zero group delay dispersion mirror sets Li-Jin Chen, 1,* Guoqing Chang, 1 Chih-Hao Li, 2 Andrew J. Benedick, 1 David F. Philips, 2 Ronald L. Walsworth,
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 informationTesting with 40 GHz Laser Sources
Testing with 40 GHz Laser Sources White Paper PN 200-0500-00 Revision 1.1 January 2009 Calmar Laser, Inc www.calmarlaser.com Overview Calmar s 40 GHz fiber lasers are actively mode-locked fiber lasers.
More informationWavelength Control and Locking with Sub-MHz Precision
Wavelength Control and Locking with Sub-MHz Precision A PZT actuator on one of the resonator mirrors enables the Verdi output wavelength to be rapidly tuned over a range of several GHz or tightly locked
More informationUltrafast Optical Physics II (SoSe 2017) Lecture 9, June 16
Ultrafast Optical Physics II (SoSe 2017) Lecture 9, June 16 9 Pulse Characterization 9.1 Intensity Autocorrelation 9.2 Interferometric Autocorrelation (IAC) 9.3 Frequency Resolved Optical Gating (FROG)
More informationTIGER Femtosecond and Picosecond Ti:Sapphire Lasers. Customized systems with SESAM technology*
TIGER Femtosecond and Picosecond Ti:Sapphire Lasers Customized systems with SESAM technology* www.lumentum.com Data Sheet The TIGER femtosecond and picosecond lasers combine soliton mode-locking, a balance
More informationGeneration of five phase locked harmonics by implementing a divide by three optical frequency divider
Generation of five phase locked harmonics by implementing a divide by three optical frequency divider Nurul Sheeda Suhaimi 1, Chiaki Ohae 1, Trivikramarao Gavara 1, Ken'ichi Nakagawa 2, Feng Lei Hong 3,4,
More informationFrequency stabilized three mode HeNe laser using nonlinear optical phenomena
Frequency stabilized three mode HeNe laser using nonlinear optical phenomena Jonathan D. Ellis, Ki-Nam Joo, Eric S. Buice, and Jo W. Spronck Mechatronic System Design, Delft University of Technology Mekelweg
More informationHigh-resolution frequency standard at 1030 nm for Yb:YAG solid-state lasers
Ye et al. Vol. 17, No. 6/June 2000/J. Opt. Soc. Am. B 927 High-resolution frequency standard at 1030 nm for Yb:YAG solid-state lasers Jun Ye, Long-Sheng Ma,* and John L. Hall JILA, National Institute of
More informationatom physics seminar ultra short laser pulses
atom physics seminar ultra short laser pulses creation and application ultra short laser pulses overview what? - why? - how? creation and optimisation typical experimental setup properties of existing
More informationCompact, Ti:sapphire based methane-stabilized optical molecular frequency comb and clock
Compact, Ti:sapphire based methane-stabilized optical molecular frequency comb and clock The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters.
More informationApplied Physics B Lasers and Optics. m. hirasawa 1,3, n. nakagawa 1,3 k. yamamoto 1,3 r. morita 1,3 h. shigekawa 2,3 m.
Appl. Phys. B 74 [Suppl.], S225 S229 (2002) DOI: 10.1007/s00340-002-0891-y Applied Physics B Lasers and Optics m. hirasawa 1,3, n. nakagawa 1,3 k. yamamoto 1,3 r. morita 1,3 h. shigekawa 2,3 m. yamashita
More informationModBox - Spectral Broadening Unit
ModBox - Spectral Broadening Unit The ModBox Family The ModBox systems are a family of turnkey optical transmitters and external modulation benchtop units for digital and analog transmission, pulsed and
More informationDispersion measurement in optical fibres over the entire spectral range from 1.1 mm to 1.7 mm
15 February 2000 Ž. Optics Communications 175 2000 209 213 www.elsevier.comrlocateroptcom Dispersion measurement in optical fibres over the entire spectral range from 1.1 mm to 1.7 mm F. Koch ), S.V. Chernikov,
More informationTesting with Femtosecond Pulses
Testing with Femtosecond Pulses White Paper PN 200-0200-00 Revision 1.3 January 2009 Calmar Laser, Inc www.calmarlaser.com Overview Calmar s femtosecond laser sources are passively mode-locked fiber lasers.
More informationNational standards of length for high-capacity optical fiber communication systems
Research paper National standards of length for high-capacity optical fiber communication systems - Development of fiber-based optical frequency combs- Hajime Inaba *, Atsushi Onae and Feng-Lei Hong [Translation
More informationAcousto-optic pulse picking scheme with carrierfrequency-to-pulse-repetition-rate. synchronization
Acousto-optic pulse picking scheme with carrierfrequency-to-pulse-repetition-rate synchronization Oliver de Vries, 1,* Tobias Saule, 2 Marco Plötner, 1 Fabian Lücking, 3 Tino Eidam, 4,5,6 Armin Hoffmann,
More information