一种超连续谱蓝宝石光纤激光器研究  

A Supercontinuum Sapphire Fiber Laser

作　　者：谭勇[1,2] 刘博 郑权 金光勇 邓岩[2] 

机构地区：[1]长春理工大学理学院,吉林长春130022 [2]长春新产业光电技术有限公司,吉林长春130103

出　　处：《中国激光》2017年第9期16-20,共5页Chinese Journal of Lasers

摘　　要：超连续谱激光是超快激光光源出现后的新方向,是多种非线性光学效应的集中体现,可应用于光谱探测、显微测量和化学传感等领域。利用可调谐飞秒激光器的不同波长输出抽运蓝宝石光纤,获取光纤两端面输出的超连续谱。根据这些连续谱特征,建立了一套以光纤前端面和半导体可饱和吸收镜(SESAM)反射面构成的较强谐振腔结构的超连续谱激光系统,输出了中心波长为640nm,半峰全宽大于250nm的超连续谱激光。结果表明,SESAM谐振腔结构能够减弱噪声并输出时谱一致的宽光谱激光。Supercontinuum laser is a new direction after the emergence of super-fast laser source and also a concentrated expression of multiple nonlinear optical effects. It can be used in the fields of spectral detection, microscopic measurement, chemical sensing and so on. The supercontinuum output of both ends of the fiber is obtained by using the tunable femtosecond laser at different wavelengths output to pump the sapphire fiber. Based on the characteristics of the continuous spectrum, the supercontinuum laser system is set up taking the ensemble of an optical fiber front end and semiconductor saturable absorber mirror （SESAM） reflector as the strong resonant cavity. The center wavelength of the final output is 640 nm with the full width at half maximum more than 250 nm. The results show that the SESAM cavity can weaken noise and output consistent wide-spectrum laser.

关 键 词：激光器 超连续谱 半导体可饱和吸收镜 蓝宝石光纤 

分 类 号：O433.2[机械工程—光学工程]