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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, the monolithically integrated multiwavelength laser array has become a research hotspot as an ideal light source for wavelength division multiplexing (WDM) systems. A low-cost distributed feedback (DFB) laser array light source module is realized through reconstruction-equivalent chirp (REC) technology. The output of the laser array is optically amplified by using an erbium-doped fiber amplifier Through the PID control program to stabilize the light source output adjustment. The center wavelength of the lasers in the light source module is evenly spaced with an average interval of 1.64 nm and the error of the wavelength interval is less than 0.2 nm. The total optical power output by the light source is greater than 50 mW and the output optical power variation is less than 0.02 d Bm.