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Spectrum broadening and reshaping via gain compensation of fiber amplifier

Published online by Cambridge University Press:  08 July 2009

C. X. Gao ,
H. Liu ,
J. Tao ,
B. Caussat  and
W. Zhao
C. X. Gao*
Affiliation:
State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, P.R. China
H. Liu
Affiliation:
State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, P.R. China
J. Tao
Affiliation:
State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, P.R. China
B. Caussat
Affiliation:
State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, P.R. China
W. Zhao
Affiliation:
State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, P.R. China
*
liuhongjun@opt.ac.cn
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Abstract

We report a novel technique to broaden and reshape the spectrum of picosecond laser pulse based on the seeder of gain switch laser diode and Yb3+-doped fiber amplifier (YDFA). From compensating the seed spectrum with the gain of YDFA, the seed pulse of 7 nm bandwidth is broadened to 20 nm, and the flat top spectral shape is obtained as well. A self-made fiber coupled tunable filter is used to realize the tunable output laser with the wavelength range from 1053 nm to 1073 nm and the line width of 1.4 nm.

Keywords

Type
Research Article
Information
The European Physical Journal - Applied Physics , Volume 48 , Issue 1 , October 2009 , 10701
Copyright
© EDP Sciences, 2009

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