Coherence properties of a short external cavity semiconductor laser system: design of a light source with widely tunable coherence length

2006 ◽  
Author(s):  
M. Peil ◽  
I. Fischer ◽  
W. Elsasser
Keyword(s):  
System Design ◽  
Semiconductor Laser ◽  
Light Source ◽  
Coherence Length ◽  
Laser System ◽  
External Cavity

scholarly journals Laser system design for table-top X-ray light source

2018 ◽  
Vol 6 ◽  
Author(s):  
Anne-Laure Calendron ◽  
Joachim Meier ◽  
Michael Hemmer ◽  
Luis E. Zapata ◽  
Fabian Reichert ◽  
...  
Keyword(s):  
System Design ◽  
Light Source ◽  
Free Electron ◽  
Cryogenic Temperature ◽  
Room Temperature ◽  
Laser System ◽  
Free Electron Lasers ◽  
X Ray ◽  
Laser Amplifiers ◽  
Laser Media

We present possible conceptual designs of a laser system for driving table-top free-electron lasers based on terahertz acceleration. After discussing the achievable performances of laser amplifiers with Yb:YAG at cryogenic and room temperature and Yb:YLF at cryogenic temperature, we present amplification modules with available results and concepts of amplifier chains based on these laser media. Their performances are discussed in light of the specifications for the tasks within the table-top light source. Technical and engineering challenges, such as cooling, control, synchronization and diagnostics, are outlined. Three concepts for the laser layout feeding the accelerator are eventually derived and presented.

Effect of external cavity semiconductor laser phase noise on a DPSK heterodyne optical receiver

1988 ◽  
Vol 24 (11) ◽  
pp. 684-685
Author(s):  
S. Betti ◽  
G. de Marchis ◽  
E. Iannone ◽  
A. Martellucci
Keyword(s):  
Phase Noise ◽  
Semiconductor Laser ◽  
External Cavity ◽  
Optical Receiver

Miniature packaged external-cavity semiconductor laser with 50 GHz continuous electrical tuning range

1988 ◽  
Vol 24 (16) ◽  
pp. 988 ◽  
Author(s):  
J. Mellis ◽  
S.A. Al-Chalabi ◽  
K.H. Cameron ◽  
R. Wyatt ◽  
J.C. Regnault ◽  
...  
Keyword(s):  
Semiconductor Laser ◽  
Tuning Range ◽  
External Cavity

Temperature and mechanical vibration characteristics of a miniature long external cavity semiconductor laser

1990 ◽  
Vol 26 (15) ◽  
pp. 1159 ◽  
Author(s):  
S.A. Al-Chalabi ◽  
J. Mellis ◽  
M. Hollier ◽  
K.H. Cameron ◽  
R. Wyatt ◽  
...  
Keyword(s):  
Semiconductor Laser ◽  
Mechanical Vibration ◽  
External Cavity ◽  
Vibration Characteristics

Linewidth Stabilization of Semiconductor Lasers in an External Cavity

1984 ◽  
Vol 5 (2) ◽  
Author(s):  
C. J. Nielsen ◽  
J. H. Osmundsen
Keyword(s):  
Semiconductor Laser ◽  
Semiconductor Lasers ◽  
Cavity Mode ◽  
External Cavity ◽  
Frequency Stabilization ◽  
Control Loop ◽  
Mean Frequency ◽  
Mode Operation ◽  
Single Cavity ◽  
Single Cavity Mode

SummaryAn automatic linewidth control loop which provides stable optimum linewidth reduction and single cavity mode operation of an external cavity semiconductor laser is presented. Stable linewidth reduction from 70 MHz to below 2 MHz is obtained for a 1.3 μm BH-laser, whereas simultaneous mean frequency stabilization to within 1 kHz and linewidth reduction from 17 MHz to 1.6 MHz is demonstrated for an 830 nm CSP-laser.

scholarly journals Characteristics of chaotic output from a Gaussian apodized fiber Bragg grating external-cavity semiconductor laser

2017 ◽  
Vol 66 (24) ◽  
pp. 244207 ◽  
Author(s):  
Qi Jun-Feng ◽  
Zhong Zhu-Qiang ◽  
Wang Guang-Na ◽  
Xia Guang-Qiong ◽  
Wu Zheng-Mao
Keyword(s):  
Semiconductor Laser ◽  
Fiber Bragg Grating ◽  
External Cavity ◽  
Bragg Grating

scholarly journals Geometry Monitoring of Rotating Parts of Power Unit with an Adapted Doppler Preprocessor

2021 ◽  
Vol 2057 (1) ◽  
pp. 012091
Author(s):  
D V Kulikov ◽  
S V Dvoynishnikov ◽  
V V Rahmanov ◽  
V A Pavlov ◽  
I K Kabardin
Keyword(s):  
Signal Processing ◽  
Semiconductor Laser ◽  
Light Source ◽  
Power Unit ◽  
Laser Diode ◽  
Semiconductor Laser Diode ◽  
Low Coherence ◽  
Signal Processing Algorithms ◽  
Processing Algorithms ◽  
Dynamic Shape

Abstract Current work is devoted to the development of a device for monitoring the dynamic shape of a power unit. The work is based on the FMCW method. The light source uses a low-coherence semiconductor laser diode. Signal processing is performed on an adapted Doppler processor. The paper describes the methods, hardware and signal processing algorithms.

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