高功率二极管激光阵列输出光谱特性的改善  

Improvement on spectrum of high power diode laser array

作　　者：赵鹏飞[1] 刘波[1] 李强[1] 张雪[1] 左铁钏[1] 

机构地区：[1]北京工业大学激光工程研究院,北京100022

出　　处：《强激光与粒子束》2007年第8期1251-1253,共3页High Power Laser and Particle Beams

基　　金：国家自然科学基金资助课题(10276003);北京市自然科学基金重点资助课题(4051001)

摘　　要：采用体布拉格光栅(VBG)外腔来压窄并稳定二极管激光阵列(DLA)输出光束的频谱。实验结果表明:在VBG波长锁定前后,DLA输出光束的光谱宽度由1.7 nm减小到0.4 nm,压窄的光谱不随注入电流的增大发生明显变化,不随热沉的温度升高而明显漂移。VBG波长锁定后在注入电流为35 A时,输出功率为15.12 W,功率损耗约2%。Stabilization and spectrum narrowing of the emission wavelength of high-power diode laser array is demonstrated by a volume Bragg grating （VBG） resonator. The spectral full width half maximum of the output emission was suppressed by VBG cavity from 1.7 nm to 0.4 nm, and the emission wavelength of VBG-locked diode laser array varied slightly with variation of output power and heat sink temperature. Output power of 15.12 W is achieved from VBC,-locked diode laser array with a loss of approximately 2% when the injection current is 35 A.

关 键 词：二极管激光阵列 体布拉格光栅 外腔 稳频 

分 类 号：TN248[电子电信—物理电子学]