物理学报2011，Vol.60Issue(1)：307-311,5.
高频调制大功率窄线宽分布反馈光纤激光器
High-frequency modulation, high-power and narrow-linewidth distributed feedback fiber laser
摘要
Abstract
A kind of narrow-linewidth fiber laser was developed.A segment of Er-doped fiber is connected after the active phase-shifted fiber grating.A distributed feedback (DFB) fiber laser is realized using a 980 nm laser for pump.The erbium ions in the Er-doped fiber are pumped from ground-state to excited state by the residual pump power, so the output power of the DFB fiber laser is amplified effectively, and the pump power is fully used.In this way, the power consumption and the cost are reduced greatly.Temperature-control techniquc is used to deal with the temperaturesensitivity of the DFB fiber laser.The high-frequency modulation is realized by using a piezo-electric actuator when the phase-shifted fiber grating is mounted on its surface.In our experiment, the highest modulation frequency, the output power and the linewidth of the fiber laser are 2 kHz, 15.6 dBm and 300 kHz, respectively.关键词
分布反馈光纤激光器/窄线宽/大功率/高频调制Key words
distributed feedback fiber laser/ narrow-linewidth/ high-power/ high-frequency modulation引用本文复制引用
薛力芳,张强,李芳,周燕,刘育梁..高频调制大功率窄线宽分布反馈光纤激光器[J].物理学报,2011,60(1):307-311,5.基金项目
第二批中国博士后科学基金(批准号:200902129),中科院知识创新工程国防科技创新重要方向项目(批准号:09JA011001)和国家高技术研究发展计划(863计划)(批准号:2009AA03Z442)资助的课题. （批准号:200902129）
