Influence of facet reflection of SOA on SOA-integrated SGDBR laser

Abstract

A combined model of the transmission-line laser model (TLLM) and the digital filter approach is developed to simulate the shuttering characteristic of a semiconductor optical amplifier (SOA), which is integrated with a sampled grating distributed Bragg reflector (SGDBR) laser, to create a so called SOA-SGDBR laser. The SOA section acts as a shutter to blank the laser output during wavelength switching events. Simulated results show that the turn-on edge of the SOA blanking process will oscillate when the facet reflection of SOA is relatively high. This phenomenon is also observed by experiments.

Keywords

sampled grating distributed Bragg reflector (SGDBR) laser / semiconductor optical amplifier (SOA) / transmission-line laser model (TLLM) / digital filter approach

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Acknowledgements

This work was supported in part by the International S&T Cooperation Program of China (No. 1016), the National Natural Science Foundation of China (Grant No. 60677024), and the Specialized Research Fund for the Doctoral Program of Higher Education (SRFDP) (No. 20100142110045).

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2014 Higher Education Press and Springer-Verlag Berlin Heidelberg