TY - JOUR

T1 - Numerical investigation of photonic microwave generation in an optically injected semiconductor laser subject to filtered optical feedback

AU - Xue, Chenpeng

AU - Ji, Songkun

AU - Hong, Yanhua

AU - Jiang, Ning

AU - Li, Hongqiang

AU - Qiu, Kun

N1 - National Natural Science Foundation of China (61471087, 61671119, 61675154, 61711530652), the China Scholarship Council (201706070007), and the Sêr Cymru National Research Network in Advanced Engineering and Materials. © 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement. https://www.osapublishing.org/library/license_v1.cfm#VOR-OA

PY - 2019/2/18

Y1 - 2019/2/18

N2 - Enhanced photonic microwave generation by using a filtered optical feedback in an optically injected semiconductor laser operating at period-one (P1) dynamics is numerically demonstrated. In the simulation, the frequency tunability of the generated narrow-linewidth photonic microwave with the filtered optical feedback has been investigated. The results show that the frequency of the narrow-linewidth photonic microwave can be widely tuned by adjusting the injection parameters only or adjusting both the injection parameters and the center frequency of the filter. Moreover, the influence of the delay time, feedback strength, filter bandwidth and detuning on the linewidth, side-peak suppression and phase noise of the generated microwave have also been investigated in detail. The results show that with increasing feedback strength or delay time, evident reduction of the linewidth is observed. The side-peak suppression also increases with increasing feedback strength; however, side-peak suppression decreases with increasing feedback delay time. In addition, the linewidth reduction and side-peak suppression are relatively robust to the filter detuning, especially for higher feedback strengths and microwave frequencies. This is mainly attributed to the self-adaptive shifting of the red-shifted cavity resonance frequency to the center frequency of the filter in the FOF configuration.

AB - Enhanced photonic microwave generation by using a filtered optical feedback in an optically injected semiconductor laser operating at period-one (P1) dynamics is numerically demonstrated. In the simulation, the frequency tunability of the generated narrow-linewidth photonic microwave with the filtered optical feedback has been investigated. The results show that the frequency of the narrow-linewidth photonic microwave can be widely tuned by adjusting the injection parameters only or adjusting both the injection parameters and the center frequency of the filter. Moreover, the influence of the delay time, feedback strength, filter bandwidth and detuning on the linewidth, side-peak suppression and phase noise of the generated microwave have also been investigated in detail. The results show that with increasing feedback strength or delay time, evident reduction of the linewidth is observed. The side-peak suppression also increases with increasing feedback strength; however, side-peak suppression decreases with increasing feedback delay time. In addition, the linewidth reduction and side-peak suppression are relatively robust to the filter detuning, especially for higher feedback strengths and microwave frequencies. This is mainly attributed to the self-adaptive shifting of the red-shifted cavity resonance frequency to the center frequency of the filter in the FOF configuration.

U2 - 10.1364/OE.27.005065

DO - 10.1364/OE.27.005065

M3 - Article

VL - 27

SP - 5065

EP - 5082

JO - Optics Express

JF - Optics Express

SN - 1094-4087

IS - 4

ER -