体全息光栅外腔半导体激光器列阵的光谱特性  

The Spectra Characteristics of Diode Lasers with Volume Holographic Grating as External Cavity

作　　者：康治军[1] 王智勇[1] 刘学胜[1] 左铁钏[1] 

机构地区：[1]北京工业大学激光工程研究院国家产学研激光技术中心,北京100022

出　　处：《半导体光电》2007年第6期781-784,共4页Semiconductor Optoelectronics

基　　金：中德国际合作项目(2002AADF3101);国家自然科技基金项目(60407009);北京市自然科学基金项目(4042007)

摘　　要：从理论上分析了强反馈外腔半导体激光器的工作原理,并采用了体全息光栅(VHG)外腔反射镜来改善大功率半导体激光器列阵(LDA)的光谱特性,这种体光栅具有很好的波长选择性,使得半导体激光器列阵的光谱线宽从2 nm减小到0.22 nm,增加了光谱亮度,而且随电流和温度变化的波长稳定性得到极大改善。The theory of diode laser array with the strongly coupled external cavity is explained. The spectral characteristics was improved greatly by using a reflective volume holographic grating （VHG） as the external cavity of diode laser bar. Because of the good wavelength selectivity of the VHG, the bandwidth of the diode laser bar was narrowed from 2 nm to 0. 22 nm and spectral brightness was increased largely. The wavelength of the diode laser bar was stabilized well by the VHG with the temperature shift and drive current changes.

关 键 词：半导体激光器 体全息光栅 外腔 光折变玻璃 光谱特性 

分 类 号：TN248.4[电子电信—物理电子学]