1064nm脉冲激光前置放大器研究  

Experimental research on preamplifier for high power Yb-doped fiber pulse laser amplification

作　　者：果鑫[1] 刘丰年[1] 李娜[1] 孔令芳[1] 李长云[1] 

机构地区：[1]湖南工业大学计算机与通信学院,湖南株洲412008

出　　处：《激光与红外》2011年第2期150-154,共5页Laser & Infrared

基　　金：国家自然科学基金项目(No.60773110);湖南工业大学博士启动基金资助

摘　　要：采用级联波分复用的泵浦耦合方式,对平均功率0.5 mW、脉宽20 ns、重复频率50 kHz的小信号纳秒脉冲进行单模放大,采用分段泵浦技术,优化两级泵浦功率值,获得了平均功率26 mW,信噪比25 dB的脉冲输出,相应增益为17.1 dB。为高功率放大提供了性能优良的脉冲种子源。By using cascaded Wavelength Division Multiplexing （WDM）, a fiber-based amplification of a fiber-pig- tailed-pulsed diode laser is experimentally demonstrated. For a laser with 50 kHz repetition rate,20 ns pulse duration and 0.5 mW average power, the amplified output power up to 26 mW is obtained, which has a high signal to noise rati- o of 25 dB. The corresponding gain is 17.1 dB. It offers a good pulse laser seed for high power laser amplifier.

关 键 词：WDM级联 掺镱脉冲放大器 信噪比 信号增益 

分 类 号：TN253[电子电信—物理电子学]