All-fiber 30-μm core diameter Yb-doped pulse-pumped amplifier cascade generating 10 nm-bandwidth 545 kW peak power pulses

被引：7

作者：

Zheng, C. ^{[1
]}

Zhang, H. T. ^{[1
]}

Cheng, W. Y. ^{[1
]}

Liu, M. ^{[1
]}

Yan, P. ^{[1
]}

Gong, M. L. ^{[1
]}

机构：

[1] Tsinghua Univ, State Key Lab Tribol, Ctr Photon & Elect, Dept Precis Instruments, Beijing 100084, Peoples R China

来源：

LASER PHYSICS LETTERS | 2012年 / 9卷 / 06期

基金：

中国国家自然科学基金; 国家高技术研究发展计划(863计划);

关键词：

wide band; Yb MOPA pulse millijoule fiber amplifier; low repetition;

D O I：

10.7452/lapl.201210014

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

An electric-pulse-driven super-luminescent diode laser generating 1064 nm wavelength with 37 nm-bandwidth, several nanoseconds pulses at 20 Hz repetition rate was used to seed an amplifier cascade featuring a 30 mu m core Yb-doped fiber as the final power amplifier. From this amplifier cascade, we obtained pulse energy from 1.0 to 1.5 mJ depending on different pulse durations with beam quality of M-2 1.7; the highest peak power in excess of 545 kW and 10 nm-bandwidth centered at 1064 nm, which is the widest bandwidth of pulsed Yb-doped millijoule fiber amplifier to our knowledge. Moreover, this all-fiber structure has application to many fields. (C) 2012 by Astro, Ltd.

引用

页码：451 / 455

页数：5

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