scholarly journals Acquiring narrow linewidth microwave signals based on an optical injection semiconductor laser under subharmonic microwave modulation

2014 ◽  
Vol 63 (24) ◽  
pp. 244204
Author(s):  
Mao Song ◽  
Wu Zheng-Mao ◽  
Fan Li ◽  
Yang Hai-Bo ◽  
Zhao Mao-Rong ◽  
...  
Keyword(s):  
Semiconductor Laser ◽  
Optical Injection ◽  
Narrow Linewidth ◽  
Microwave Signals ◽  
Microwave Modulation

scholarly journals Optically-Injected-Semiconductor-Laser-Based Tunable Dual-Frequency Optoelectronic Oscillator under Subharmonic Microwave Modulation

2021 ◽  
Vol 11 (9) ◽  
pp. 3961
Author(s):  
Jiayi Zhao ◽  
Yiying Gu ◽  
Jian Li ◽  
Xiaozhou Li ◽  
Mingshan Zhao ◽  
...  
Keyword(s):  
Phase Noise ◽  
Semiconductor Laser ◽  
Frequency Offset ◽  
Optical Injection ◽  
Dual Frequency ◽  
Optoelectronic Oscillator ◽  
Mode Suppression ◽  
Microwave Signals ◽  
Microwave Modulation ◽  
Tunable Frequency

To obtain low-phase-noise microwave signals with a widely tunable frequency range, an optoelectronic oscillator (OEO) was constructed on the basis of an optically injected semiconductor laser (OISL) for the generation of high-quality microwave signals. Our OEO relied on the effect of wavelength-selective amplification and the period-one (P1) oscillation under optical injection. The signal’s frequency stability, side-mode-suppression ratio (SMSR) and linewidth were optimized by the subharmonic microwave modulation technique in the OEO loop. The experimental results showed that the frequency of the signal obtained by the proposed OEO could be tuned up to 18 GHz. Using the dual-loop OEO structure, the SMSR was increased to 55 dB. Moreover, the phase noise of the obtained microwave signal was lower than −81 dBc/Hz at 1 kHz frequency offset and −119 dBc/Hz at 10 kHz frequency offset. This was achieved by introducing subharmonic microwave modulation in the OEO loop, respectively. Furthermore, via the utilization of a Fabry–Perot laser diode (FP-LD) in the proposed structure, a dual-loop OEO with different dual-frequency configurations (which could be tuned up to 12 and 18 GHz) was obtained.

Amplification Properties of a Distribution Feedback Semiconductor Laser under Optical Injection and Its Application in Generating Microwave Signals

2013 ◽  
Vol 33 (6) ◽  
pp. 0614002
Author(s):  
熊锦添 Xiong Jintian ◽  
王荣 Wang Rong ◽  
蒲涛 Pu Tao ◽  
卢麟 Lu Lin ◽  
方涛 Fang Tao ◽  
...  
Keyword(s):  
Semiconductor Laser ◽  
Optical Injection ◽  
Microwave Signals

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.

High power, narrow linewidth, micro-integrated semiconductor laser modules designed for quantum sensors in space

CLEO: 2014 ◽  
2014 ◽  
Author(s):  
Anja Kohfeldt ◽  
Ahmad Bawamia ◽  
Christian Kürbis ◽  
Erdenetsetseg Luvsandamdin ◽  
Max Schiemangk ◽  
...  
Keyword(s):  
Semiconductor Laser ◽  
High Power ◽  
Narrow Linewidth
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