基于级联光纤Bragg光栅的外腔半导体激光器三波长同时激射

实现了使用3个级联的光纤Bragg光栅外腔半导体激光器3波长同时激射.3条谱线的峰值波长取决于光纤Bragg光栅的峰值反射波长,分别为1 531.5 nm、1 549.4 nm与1 554.8 nm.注入电流为52 mA时,激光器总输出功率为1 mW.该激光器的主要优点包括,由于输出波长被锁定在光纤Bragg光栅的Bragg波长上,因此输出波长稳定,谱线窄,成本低.可应用于多波长干涉测量以及全光通信等领域中.

3-wavelength Operation of an External Cavity Laser Diode with Cascaded Fiber Bragg Gratings

The 3-wavelength operation of external cavity laser diode with cascaded fiber Bragg gratings is achieved.The peak wavelength of the 3-wavelength spectra are determined by the Bragg wavelength of three fiber Bragg gratings,and are 1 531 nm and 1 549 nm and 1 554.8 nm respectively.At a bias of 52 mA,the total output power of the external cavity laser is 1 mW.The main advantages of the laser is that the wavelength of the laser is steady because of wavelength is lock at the Bragg wavelength of fiber grating,and linewidth is narrow,and cost is low.The laser can be used for interference measurement with multi-wavelength,and all-optical communication.