Laser Frequency Drift Control Based on Refrigeration Fabry-Pérot Cavity

2017 ◽  
Vol 54 (3) ◽  
pp. 031401
Author(s):  
汪绍茂 Wang Shaomao ◽  
商俊娟 Shang Junjuan ◽  
崔凯枫 Cui Kaifeng ◽  
张 平 Zhang Ping ◽  
晁思嘉 Chao Sijia ◽  
...  
Keyword(s):  
Laser Frequency ◽  
Frequency Drift ◽  
Fabry Perot ◽  
Drift Control

Fast scanning cavity offset lock for laser frequency drift stabilization

2010 ◽  
Vol 81 (7) ◽  
pp. 075109 ◽  
Author(s):  
Nicolas Seymour-Smith ◽  
Peter Blythe ◽  
Matthias Keller ◽  
Wolfgang Lange
Keyword(s):  
Laser Frequency ◽  
Frequency Drift

A Structure Nondestructive Evaluation Using Laser-Generated Ultrasonic Application

2004 ◽  
Vol 261-263 ◽  
pp. 1367-1372
Author(s):  
Jae Yeol Kim ◽  
S.U. Yoon ◽  
Kyeung Cheun Jang ◽  
Myung Soo Ko ◽  
Jae Sin An
Keyword(s):  
Light Beam ◽  
Laser Frequency ◽  
Test Material ◽  
Time Shift ◽  
Ultrasonic Signals ◽  
Fabry Perot ◽  
Convex Mirror ◽  
Type Size ◽  
Pulse Type ◽  
Stable Frequency

In the present study, a Nd;YAG Laser (pulse type) was used to emit ultrasonic signals to a test material. In addition, a total ultrasonic investigation system was designed by adopting a Fabry-Perot interferometer, which receives ultrasonic signals without any contact. For non-destructive test SM45C, which contains some flaws was used as a test material. Because it is easy to align light beam in receiver, and the length of the light beam does not change much even if convex mirror leans towards one side, confocal Fabry-Perot interferometer, which has stable frequency, and PI control are used to correct interfered and unstable signals from temperature, fluctuation and time shift of laser frequency. Stable signals are always obtained by the feedback of PI circuit signals in the confocal Fabry-Perot interferometer. The type, size and position of flaws inside the test material were examined by achieving the stabilization of an interferometer. This study presented a useful method, which could quantitatively investigate the fault of objects by using a Fabry-Perot interferometer.

scholarly journals Influence of the Laser Frequency Drift in Phase-Sensitive Optical Time Domain Reflectometry

2019 ◽  
Vol 127 (4) ◽  
pp. 656-663 ◽  
Author(s):  
A. A. Zhirnov ◽  
K. V. Stepanov ◽  
A. O. Chernutsky ◽  
A. K. Fedorov ◽  
E. T. Nesterov ◽  
...  
Keyword(s):  
Time Domain ◽  
Laser Frequency ◽  
Time Domain Reflectometry ◽  
Frequency Drift ◽  
Optical Time Domain Reflectometry ◽  
Phase Sensitive ◽  
Optical Time

Frequency Stabilization of the Diode Laser to the Extra Reference Cavity

2012 ◽  
Vol 198-199 ◽  
pp. 1235-1240
Author(s):  
Xiao Dong Liu ◽  
Hai Dong Lei ◽  
Jian Jun Zhang
Keyword(s):  
Semiconductor Laser ◽  
Diode Laser ◽  
Laser Frequency ◽  
Frequency Stabilization ◽  
Resonance Peak ◽  
Experimental Setup ◽  
Laser Frequency Stabilization ◽  
Reference Cavity ◽  
Fabry Perot ◽  
Important Study

The Semiconductor laser frequency stabilization is the important study topic because of its increasing popular. We introduce a simply experimental setup method of the frequency stabilization of a 780 nm diode laser by only a tiny current in the laser audio modulation, photodiode receiver, and locking the transmission peaks. Use this method, the laser can be locked to the resonance peak of the Fabry-Perot cavity. The linewidth of laser is below 400 kHz, and it runs continually above 3 hours.

Hyperfine Structure Measurement of Rubidium Atom and Tunable Diode Laser Stabilization by Using Sagnac Interferometer

2006 ◽  
Vol 6 (11) ◽  
pp. 3559-3561
Author(s):  
Jin-Tae Kim ◽  
Liu Zhen ◽  
Venedikt Kapitanov ◽  
Hyun Su Kim ◽  
Jong Rak Park ◽  
...  
Keyword(s):  
Hyperfine Structure ◽  
Frequency Tuning ◽  
Free Spectral Range ◽  
Laser Frequency ◽  
Tunable Diode Laser ◽  
Sagnac Interferometer ◽  
Laser Stabilization ◽  
Saturation Spectroscopy ◽  
Rubidium Atom ◽  
Fabry Perot

The Rubidium saturated absorption spectra for D2 transition lines are used to measure the Fabry-Perot interferometer free spectral range (FSR). The scale linearity of the laser frequency tuning is determined. The Sagnac interferometer has been used for the laser stabilization. The result shows that the laser frequency is stabilized upto sub-mega Herz level. Also the hyperfine structure [52S1/2 F = 3 → F′ = 2, 3, 4 52P3/2 85Rb] of the rubidium atom has been measured by using the tilt locking method, which shows the same result as the conventional saturation spectroscopy.

scholarly journals Tuning properties of mid-infrared Fabry-Pérot quantum cascade lasers for multiheterodyne spectroscopy

2016 ◽  
Vol 8 (4) ◽  
pp. 113 ◽  
Author(s):  
Lukasz Antoni Sterczewski ◽  
Jonas Westberg ◽  
Gerard Wysocki
Keyword(s):  
High Resolution ◽  
Quantum Cascade Laser ◽  
Quantum Cascade Lasers ◽  
Laser Frequency ◽  
Hole Burning ◽  
Mid Infrared ◽  
Frequency Combs ◽  
Quantum Cascade ◽  
Fabry Perot ◽  
Cascade Lasers

Injection current tuning properties of an 8.5 um Fabry-Pérot mid-infrared quantum cascade laser are evaluated by analyzing the mode-by-mode frequency tuning behavior with an identification of high-noise regimes in a delayed self-heterodyne experiment. We find that modes on the edges of the spectral envelope exhibit anomalous tuning coefficients compared to those in the center. Furthermore, the frequencies of individual modes are susceptible to parasitic etalons, likely causing laser frequency pulling. Despite the complicated tuning behavior, low phase-noise operating regimes exist, and are compatible with high resolution multiheterodyne spectroscopy of gases. Full Text: PDF ReferencesJ. Faist, F. Capasso, D.L. Sivco, C. Sirtori, A.L. Hutchinson, A.Y. Cho, "Quantum Cascade Laser", Science 264 (1994) 553?556. CrossRef A. Hugi, G. Villares, S. Blaser, H.C. Liu, J. Faist, "Mid-infrared frequency comb based on a quantum cascade laser", Nature 492 (2012) 229?233. CrossRef G. Villares, A. Hugi, S. Blaser, J. Faist,"Dual-comb spectroscopy based on quantum-cascade-laser frequency combs", Nat. Commun. 5 (2014) 5192. CrossRef G. Villares, S. Riedi, J. Wolf, D. Kazakov, M.J. Süess, P. Jouy, M. Beck, J. Faist, "Dispersion engineering of quantum cascade laser frequency combs", Optica 3 (2016) 252. CrossRef Y. Wang, M.G. Soskind, W. Wang, G. Wysocki, "High-resolution multi-heterodyne spectroscopy based on Fabry-Perot quantum cascade lasers", Appl. Phys. Lett. 104 (2014) 31114. CrossRef A. Hangauer, J. Westberg, E. Zhang, G. Wysocki, "Wavelength modulated multiheterodyne spectroscopy using Fabry-Pérot quantum cascade lasers", Opt. Express 24 (2016) 25298. CrossRef D. Burghoff, Y. Yang, D.J. Hayton, J.-R. Gao, J.L. Reno, Q. Hu, "Evaluating the coherence and time-domain profile of quantum cascade laser frequency combs", Opt. Express 23 (2015) 1190?1202. CrossRef A. Gordon, C.Y. Wang, L. Diehl, F.X. Kärtner, A. Belyanin, D. Bour, S. Corzine, G. Höfler, H.C. Liu, H. Schneider, T. Maier, M. Troccoli, J. Faist, F. Capasso, "Multimode regimes in quantum cascade lasers: From coherent instabilities to spatial hole burning", Phys. Rev. A 77 (2008). CrossRef S. Blaser, D.A. Yarekha, L. Hvozdara, Y. Bonetti, A. Muller, M. Giovannini, J. Faist, "Room-temperature, continuous-wave, single-mode quantum-cascade lasers at ?=5.4?m", Appl. Phys. Lett. 86 (2005) 41109. CrossRef S. Schiller, "Spectrometry with frequency combs", Opt. Lett. 27 (2002) 766?768. CrossRef T. Tsai, G. Wysocki, "Active wavelength control of an external cavity quantum cascade laser", Appl. Phys. B Lasers Opt. 109 (2012) 415?421. CrossRef

scholarly journals High speed phase shifting interferometry using injection locking of the laser frequency to the resonant modes of a confocal Fabry-Perot cavity

2009 ◽  
Vol 17 (3) ◽  
pp. 1442 ◽  
Author(s):  
Chu-Shik Kang ◽  
Jong-Ahn Kim ◽  
Tae Bong Eom ◽  
Roma Jang ◽  
Hae Yong Park ◽  
...  
Keyword(s):  
High Speed ◽  
Laser Frequency ◽  
Injection Locking ◽  
Phase Shifting ◽  
Phase Shifting Interferometry ◽  
Resonant Modes ◽  
Fabry Perot
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