All-fiber cascaded ytterbium-doped nanosecond pulsed amplifier  

作　　者：周洁 闫平 殷树鹏 王东生 巩马理 

机构地区：[1]Center for Photonics and Electronics,State Key Laboratory of Tribology,Department of Precision Instruments and Mechanology,Tsinghua University

出　　处：《Chinese Optics Letters》2010年第5期457-459,共3页中国光学快报（英文版）

摘　　要：A cascaded ytterbium-doped all-fiber master oscillator power amplifier（MOPA） with 1064-nm pulsed laser is demonstrated,and it can produce up to 20-W average power and 0.1-mJ pulse energy at tunable repetition rates from 10 to 200 kHz.Two main difficulties of the all-fiber configuration are overcome：all fiber isolator and mode field adapter between single mode fiber（SMF） and double cladding fiber（DCF）. Gain saturation and nonlinear effect are analyzed theoretically,and the possibility of further power-scaling of this cascade scheme is predicted.A cascaded ytterbium-doped all-fiber master oscillator power amplifier（MOPA） with 1064-nm pulsed laser is demonstrated,and it can produce up to 20-W average power and 0.1-mJ pulse energy at tunable repetition rates from 10 to 200 kHz.Two main difficulties of the all-fiber configuration are overcome：all fiber isolator and mode field adapter between single mode fiber（SMF） and double cladding fiber（DCF）. Gain saturation and nonlinear effect are analyzed theoretically,and the possibility of further power-scaling of this cascade scheme is predicted.

关 键 词：Cladding (coating) Fiber lasers Optical phase conjugation Power amplifiers Pulse repetition rate Pulsed laser applications Pulsed lasers Single mode fibers YTTERBIUM 

分 类 号：TN253[电子电信—物理电子学]