摘要
根据大功率半导体激光器输出光束的偏振特性,基于偏振复用的原理,分别利用双折射晶体和偏振合束晶体对两只大功率半导体线列阵激光器进行了偏振合束研究。依据理论计算结果,生长了双折射晶体YVO4,并进行了特殊的光路系统设计,最终实现了偏振复用,功率效率达到66%;利用偏振合束,晶体功率效率为85%。最后,从各方面比较了两种方法的优缺点。
According to the polarization characteristics of high power diode laser arrays and based on the polarization multiplexing theory, polarization multiplexing of two high power diode laser arrays were performed by using a beam polarization splitter and a birefringent crystal, respectively. Based on thoretical calculations, birefringent crystal YVO4was grown and a special light path system was designed, achieving a power efficiency of 66% for polarization multiplexing, while the efficiency is 85% for beam polarization splitter.
出处
《半导体光电》
EI
CAS
CSCD
北大核心
2008年第6期831-834,共4页
Semiconductor Optoelectronics
基金
国家自然科学基金项目(60576041)
关键词
激光技术
双折射晶体
偏振合束晶体
线列阵半导体激光器
偏振复合
laser techniques
birefringent crystal
beam polarization splitter
laser diodearray
polarization multiplexing
