Title :
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
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;
Conference_Titel :
Photonics and Optoelectronics (SOPO), 2011 Symposium on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-6555-2
DOI :
10.1109/SOPO.2011.5780488
