研究目的
Investigating the enhancement of modulation bandwidth in coupled-cavity semiconductor lasers using photon–photon resonance for high-speed applications.
研究成果
The study presents comprehensive simulations on the modulation response of semiconductor laser coupled with an optical feedback cavity, showing the potential of the induced optical feedback to enhance the modulation bandwidth beyond 50 GHz and achieve resonant modulation around frequencies approaching 60 GHz. The improvements in the modulation performance are attributed to the photon–photon resonance effect.
研究不足
The study is based on simulations and lacks experimental validation. The practical implementation of the proposed laser with enhanced modulation bandwidth may face challenges in fabrication and integration.
1：Experimental Design and Method Selection:
The study is based on computational analysis of the improved time-delay rate equations of semiconductor laser operating under optical feedback.
2：Sample Selection and Data Sources:
The calculations are done for
3：55 μm InGaAsP laser with a MQW structure and coupled with an air feedback cavity. List of Experimental Equipment and Materials:
The laser parameters are based on previous experimental and simulation studies.
4：Experimental Procedures and Operational Workflow:
The 4th order Runge–Kutta method is applied for time integration of rate equations, using a time step as short as
5：2 ps. Data Analysis Methods:
The influence of optical feedback in terms of the power reflectivity of the external mirror is studied.
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