Numerical modeling of intracavity spectral broadening of Raman fiber lasers

被引：19
|
作者：
Hagen, J. [1 ]
Engelbrecht, R. [1 ]
Welzel, O. [1 ]
Siekiera, A. [1 ]
Schmauss, B. [1 ]
机构：
[1] Univ Erlangen Nurnberg, Lehrstuhl Hochfrequenztech, D-91058 Erlangen, Germany
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 2007年 / 19卷 / 21-24期
关键词：
four-wave mixing (FWM); Raman fiber laser (RFL); spectral broadening;
D O I：
10.1109/LPT.2007.905666
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Raman fiber lasers (RFLs) are efficient light sources at frequencies where no other comparable all-solid-state sources are available. Especially if fiber Bragg gratings (FBGs) with narrow bandwidths are used, the bandwidth of the Stokes light is strongly broadened by Kerr nonlinearities like four-wave mixing (FWM), and self- and cross-phase modulation (SPM, XPM). In this letter, we discuss an exact numerical model to calculate the spectral behaviour of RFLs and show its application to determine the effective reffectivity of the FBGs. The model is based on a combination of the nonlinear Schroedinger equation including dispersion, FWM, SPM, and XPM with a shooting method to solve the power steady-state equations for RFLs. Numerical results are in good agreement with measurements.
引用
收藏
页码：1759 / 1761
页数：3
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