基于REC技术的激光器阵列光源模块设计

Design of laser array light source module based on REC technology

近年来,单片集成的多波长激光器阵列作为波分复用(WDM)系统的理想光源而成为研究热点。通过重构-等效啁啾(REC)技术实现了一种低成本的分布反馈式(DFB)激光器阵列光源模块,采用掺铒光纤放大器(EDFA)对该激光器阵列的输出进行了光学放大,并通过PID控制程序对光源输出进行稳定化调节。光源模块中各通道激光器的中心波长间隔均匀,平均间隔为1.64 nm,波长间隔的误差小于0.2 nm。光源所输出的总光功率大于50 m W,输出光功率变化小于0.02 d Bm。

In recent years, monolithic integrated multi wavelength laser array （MLA） has become a hot research topic, as an ideal light source in the wavelength division multiplexing system. A low-cost distributed-feedback （DFB） laser array light source module based on reconstruction-equivalent-chirp（REC） technology was demonstrated. The output of this module was amplified by Erbium-doped fiber amplifier （EDFA） and adjusted by PID control program. The center wavelength spacing of the light source module was uniform. The average interval was 1.64 nm, and the wavelength spacing deviation was less than 0.2 nm. The total output power of the light source was more than 50 mW and the output light power change was less than 0.02 dBm.