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半导体激光器波长稳定系统的反馈效率 被引量:1

Feedback efficiency for diode laser wavelength stabilization system
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摘要 反射式体布拉格光栅(VBG)是改善半导体激光器(DL)输出光谱特性的首选器件。对快轴准直透镜(FAC)的非球面方程进行了数值拟合,采用光线追迹的方法建立了DL波长稳定系统反馈效率的计算模型,分析了FAC透镜、反射式VBG的空间位置和旋转角度变化对DL波长稳定系统反馈效率的影响,给出了波长稳定系统中FAC和反射式VBG的装调容差范围。分析结果表明:反射式VBG的空间位置偏差对反馈效率影响不大,但FAC透镜的空间位置和旋转角度偏差、反射式VBG的旋转角度偏差会造成反馈效率的急剧下降。 Reflective volume Bragg grating(VBG)is the first choice to improve the output characteristics of the diode laser(DL).The non-sphere equation of fast axis collimation(FAC)lens is simulated.In this paper,based on the ray-trace method,calculation principles and approaches of feedback efficiency for diode laser wavelength stabilization system are investigated,and the tolerance of FAC lens and reflection VBG are presented.The results show the feedback efficiency is not sensitive to VBG spatial location error,but the FAC spatial location error and tilt angle error and the VBG tilt angle error will cause an acute decline of the feedback efficiency.
出处 《强激光与粒子束》 EI CAS CSCD 北大核心 2015年第4期72-75,共4页 High Power Laser and Particle Beams
基金 中国工程物理研究院高功率光纤激光器项目(2014PY-4) 中国工程物理研究院高能激光科学与技术重点实验室基金项目(HEL2014-08)
关键词 反射式VBG 半导体激光器 波长稳定 光纤耦合 reflective volume Bragg grating diode laser wavelength stabilized fiber coupling
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