scholarly journals Elimination of time-delay signature in an external cavity semiconductor laser by randomly modulating feedback phase

2011 ◽  
Vol 60 (9) ◽  
pp. 094207
Author(s):  
Zhang Jian-Zhong ◽  
Wang An-Bang ◽  
Zhang Ming-Jiang ◽  
Li Xiao-Chun ◽  
Wang Yun-Cai
Keyword(s):  
Time Delay ◽  
Semiconductor Laser ◽  
External Cavity ◽  
Feedback Phase

scholarly journals Time delay signature concealment of optical feedback induced chaos in an external cavity semiconductor laser

2010 ◽  
Vol 18 (7) ◽  
pp. 6661 ◽  
Author(s):  
Jia-Gui Wu ◽  
Guang-Qiong Xia ◽  
Xi Tang ◽  
Xiao-Dong Lin ◽  
Tao Deng ◽  
...  
Keyword(s):  
Time Delay ◽  
Semiconductor Laser ◽  
Optical Feedback ◽  
External Cavity

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.

The Role of Master Laser with Feedback in Time-Delay Signature Suppression of Semiconductor Laser Subject to Chaotic Optical Injection

2017 ◽  
Vol 27 (11) ◽  
pp. 1750169 ◽  
Author(s):  
Liyue Zhang ◽  
Wei Pan ◽  
Penghua Mu ◽  
Xiaofeng Li ◽  
Shuiying Xiang ◽  
...  
Keyword(s):  
Time Delay ◽  
Semiconductor Laser ◽  
Optical Feedback ◽  
Bias Current ◽  
Optical Injection ◽  
Strength Parameter ◽  
Master Laser ◽  
Feedback Strength ◽  
Chaotic Signals

The important role of parameters in master laser with optical feedback for the elimination of time-delay (TD) signature in semiconductor laser subject to chaotic optical injection is investigated systemically. The experimental results show that TD signature suppressed chaotic signals can be credibly generated by increasing the feedback strength of the master laser, which is quite different from the trends observed in semiconductor laser (SL) with optical feedback. Systematically numerical analysis is also carried out as a validation, and it is shown that with low bias current and strong feedback strength, parameter regions contributing to successful TD suppression are much wider. Furthermore, it is shown that the influence of frequency detuning in TD concealment will change with the increase of feedback strength. All the numerical results are in perfect accordance with experimental observation.

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