用光纤光栅作外反馈的可调谐外腔半导体激光器  

Tunable External Cavity Semiconductor Laser with Fiber Bragg Grating as Feedback

作　　者：周凯明[1] 葛璜[1] 安贵仁[1] 汪孝杰[1] 王圩[1] 

机构地区：[1]中国科学院半导体研究所,北京100083

出　　处：《中国激光》2001年第2期113-115,共3页Chinese Journal of Lasers

摘　　要：制作了一种以光纤光栅作为外反馈的半导体激光器。光纤光栅用紫外曝光法制作 ,反射率为 5 0 %。器件在5 0mA注入电流时 ,出纤功率高于 1mW ,主边模抑制比为 42dB。使用对光纤光栅施加应变和改变光栅温度的方法实现了输出激光波长的调谐 ,利用施加应变方法得到了 2nm范围的输出波长变化。An external cavity semiconductor laser configuration, which employs fiber grating as feedback is reported in this paper. The fiber grating is fabricated by UV light exposure, with reflectivity of 50%. At injection current of 50 mA, output is over 1 mW and the MSR is 42 dB. The laser wavelength is tuned by applying strain along the fiber grating and by heating the fiber grating. With the applying-strain method, the tuning range of 2 nm is obtained.

关 键 词：光纤光栅 半导体激光器 可调谐外腔结构 外反馈 

分 类 号：TN248.4[电子电信—物理电子学]