Eur. Phys. J. Appl. Phys.
Volume 48, Number 1, October 2009
|Number of page(s)||4|
|Published online||08 July 2009|
Spectrum broadening and reshaping via gain compensation of fiber amplifier
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
Corresponding author: email@example.com
Accepted: 30 April 2009
Published online: 8 July 2009
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.
PACS: 42.55.Wd – Fiber lasers / 42.65.Dr – Stimulated Raman scattering / 42.65.Es – Stimulated Brillouin and Rayleigh scattering
© EDP Sciences, 2009
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