1 MW Peak Power, Sub-Nanosecond Master Oscillator Fiber Power Amplifier

Author

Zhao Jian ; Yan Pei-guang ; Shu Jie ; Ruan Shuang-chen

Author_Institution

Shenzhen Key Lab. of Laser Eng., Shenzhen Univ., Shenzhen, China

fYear

2011

fDate

16-18 May 2011

Firstpage

1

Lastpage

3

Abstract

A master oscillator fiber power amplifier system delivering 0.7 ns pulse duration at repetition rates of 6.5 KHz and peak power up to 1 MW has been reported. The system consisting of a passively Q-switched microchip sub-nanosecond laser operating at 1064nm as the master oscillator and an Yb-doped large-mode-area double-clad fiber as the power amplifier shows a high gain of 18 dB and the amplified spontaneous emission suppression is up to 40 dB. The emission spectrum and the output beam quality have also been measured.

Keywords

Q-switching; microchip lasers; optical fibre amplifiers; optical pulse generation; power amplifiers; superradiance; Yb-doped large-mode-area double-clad fiber; amplified spontaneous emission suppression; passively Q-switched microchip laser; pulse repetition rates; subnanosecond master oscillator fiber power amplifier; wavelength 1064 nm; Fiber lasers; Laser beams; Measurement by laser beam; Optical fiber amplifiers; Optical fiber communication; Power amplifiers; Power lasers;

fLanguage

English

Publisher

ieee

Conference_Titel

Photonics and Optoelectronics (SOPO), 2011 Symposium on

Conference_Location

Wuhan

ISSN

2156-8464

Print_ISBN

978-1-4244-6555-2

Type

conf

DOI

10.1109/SOPO.2011.5780488

Filename

5780488