Gain-guiding effects in transient Raman amplifiers
JOSA B, Vol. 16, Issue 6, pp. 961-965 (1999)
http://dx.doi.org/10.1364/JOSAB.16.000961
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Abstract
A nonorthogonal theory is used to study the non-Hermitian character of the excess noise in gain-guided transient Raman amplifiers. We calculated the output of the gain-guided transient Raman scattering based on a nonorthogonal mode expansion. We found that the excess noise in a transient gain-guided amplifier increases nonlinearly from 0 (and the Petermann factor nonlinearly from 1) and that the evolution depends mainly on the integrated energy of the pump laser pulse.
© 1999 Optical Society of America
OCIS Codes
(190.4420) Nonlinear optics : Nonlinear optics, transverse effects in
(190.4970) Nonlinear optics : Parametric oscillators and amplifiers
(190.5650) Nonlinear optics : Raman effect
Citation
Jianqiu Xu and Qihong Lou, "Gain-guiding effects in transient Raman amplifiers," J. Opt. Soc. Am. B 16, 961-965 (1999)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-16-6-961
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