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Optical Engineering

Raman-induced limitation of gain flatness in broadband fiber-optical parametric amplifier
Author(s): Yunyi Deng; Chongxiu Yu; Jinhui Yuan; Xinzhu Sang; Wenjing Li
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Paper Abstract

Raman effect brings the inevitable limitation of gain flatness in the fiber-optical parametric amplifier even if the phase-matched condition is well satisfied. Phase-matched gain is modulated by the real part of Raman susceptibility especially when it is on the anti-Stokes side. The real part mainly determines the gain profile and limits the flat-gain bandwidth to be less than 180 nm. An asymmetric modulated gain spectrum appears due to the assistance of the imaginary part on the Stokes side. Simulation results also show that the single- and dual-pump configurations have different gain amplitude modulation factors induced by Raman.

Paper Details

Date Published: 6 April 2012
PDF: 7 pages
Opt. Eng. 51(4) 045003 doi: 10.1117/1.OE.51.4.045003
Published in: Optical Engineering Volume 51, Issue 4
Show Author Affiliations
Yunyi Deng, Beijing Univ. of Posts and Telecommunications (China)
Chongxiu Yu, Beijing Univ. of Posts and Telecommunications (China)
Jinhui Yuan, Beijing Univ. of Posts and Telecommunications (China)
Xinzhu Sang, Beijing Univ. of Posts and Telecommunications (China)
Wenjing Li, Beijing Univ. of Posts and Telecommunications (China)


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