scholarly journals Phase noise characteristics of microwave signals generated by semiconductor laser dynamics

2015 ◽  
Vol 23 (3) ◽  
pp. 2777 ◽  
Author(s):  
Jun-Ping Zhuang ◽  
Sze-Chun Chan
Keyword(s):  
Phase Noise ◽  
Semiconductor Laser ◽  
Noise Characteristics ◽  
Laser Dynamics ◽  
Microwave Signals

scholarly journals Tunable, low-phase-noise microwave signals from an optically injected semiconductor laser with opto-electronic feedback

2017 ◽  
Vol 42 (16) ◽  
pp. 3181 ◽  
Author(s):  
Joseph S. Suelzer ◽  
Thomas B. Simpson ◽  
Preetpaul Devgan ◽  
Nicholas G. Usechak
Keyword(s):  
Phase Noise ◽  
Semiconductor Laser ◽  
Electronic Feedback ◽  
Microwave Signals ◽  
Low Phase Noise

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.

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

scholarly journals Optimizing noise characteristics of mode-locked Yb-doped fiber laser using gain-induced RIN-transfer dynamics

2021 ◽  
Vol 9 ◽  
Author(s):  
Jiangshuoxue Han ◽  
Yang Liu ◽  
Zejiang Deng ◽  
Gehui Xie ◽  
Daping Luo ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Phase Noise ◽  
Transfer Functions ◽  
Dopant Concentration ◽  
Corner Frequency ◽  
Dispersion Management ◽  
Noise Characteristics ◽  
Laser Design ◽  
Parameter Dependent ◽  
Low Phase Noise

Abstract Gain-parameter-dependent transfer functions and phase-noise performances in a mode-locked Yb-doped fiber laser are measured in this study. It is discovered that the corner frequency in the amplitude and phase domains is determined by the absorption coefficient of the gain fiber, when the total absorption and other cavity parameters are fixed. This shows that an oscillator using gain fiber with higher dopant concentration accumulates more phase noise. Furthermore, we present net cavity dispersion-dependent transfer functions to verify the effect of dispersion management on the frequency response. We derive a guideline for optimizing mode-locked fiber laser design to achieve low phase noise and timing jitter.

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
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