Open AccessFour-wave mixing in nanosecond pulsed fiber amplifiers
Author(s) -
Jean-Philippe Fève,
Paul E. Schrader,
Roger L. Farrow,
Dahv A. V. Kliner
Publication year - 2007
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.15.004647
Subject(s) - optics , materials science , four wave mixing , nanosecond , fiber laser , birefringence , ytterbium , laser , mixing (physics) , amplifier , optoelectronics , nonlinear optics , physics , cmos , quantum mechanics
We present an experimental and theoretical analysis of four-wave mixing in nanosecond pulsed amplifiers based on double-clad ytterbium-doped fibers. This process leads to saturation of the amplified pulse energy at 1064 nm and to distortion of the spectral and temporal profiles. These behaviours are well described by a simple model considering both Raman and four-wave-mixing contributions. The role of seed laser polarization in birefringent fibers is also presented. These results point out the critical parameters and possible tradeoffs for optimization.