中文题目: 吉赫兹级窄线宽、高峰值功率纳秒光纤激光器
外文题目: Gigahertz Narrow-Linewidth High-Peak Power Nanosecond Fiber Laser
作者: 邹峰; 王兆坤; 王子薇; 周翠芸; 刘源; 杨燕; 周军
刊名: 中国激光
年: 2016 卷: 43 期: 7 页： 701001
中文关键词:
激光器; 光纤激光器; 窄线宽纳秒脉冲; 半导体激光器调制
英文关键词:

lasers; fiber lasers; narrow-linewidth nanosecond pulse; modulation of diode laser
中文摘要:
报道了基于主振荡功率放大(MOPA)工作方式的吉赫兹级窄线宽、高峰值功率光纤激光器。该激光器以脉冲调制的分布反馈式单频半导体激光器为种子源,波长为1064.12nm,脉冲宽度为3.92ns,重复频率在10~ 50kHz内连续可调。采用光纤双程放大结构的预放大级以增加小信号放大能力并抑制强抽运下的自发放大辐射,优化功率放大级光纤长度以抑制窄线宽激光放大过程中的受激布里渊散射,在重复频率为10kHz时,获得光谱线宽为1.5GHz、峰值功率达15kW的脉冲激光输出。实验研究了不同重复频率时的输出激光脉冲特性。

英文摘要:
A GHz narrow-linewidth high-peak power nanosecond fiber laser based on the master oscillator power amplifier(MOPA)is reported.The modulated distributed feedback single-frequency diode laser seed delivers pulses with wavelength of 1064.12nm,pulse width of 3.92ns,and tunable repetition rate from 10kHz to 50kHz.A double-pass structure is used in the preamplifier to boost small signal and suppress amplification of spontaneous emission under intense pump.In the power amplifier the stimulated Brillouin scattering is avoided by shortening fiber length.Pulsed laser with 1.5GHz linewidth and 15kW peak power is obtained at a repetition rate of 10kHz. The output pulse characteristics at different repetition rates are studied.


文献类型: 期刊论文
正文语种: Chinese
收录类别: CSCDEI
DOI: 10.3788/CJL201643.0701001


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