Comparison of interchannel pulses four-wave mixing in SMF, NZDSF and HNLF

被引:11
|
作者
Gao, SM [1 ]
Yang, CX [1 ]
Jin, GF [1 ]
机构
[1] Tsing Hua Univ, State Key Lab Precis Measurement Technol & Instru, Beijing 100084, Peoples R China
关键词
ultrashort pulse; four-wave mixing; single-mode fiber; dense wavelength division multiplexing;
D O I
10.1016/S0030-4018(02)01409-8
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We systematically analyze the interchannel ultrashort pulses four-wave mixing (FWM) in dense wavelength division multiplexing (DWDM) systems with single-mode fiber (SMF), nonzero dispersion-shifted fiber (NZDSF), and highly nonlinear fiber (HNLF). We investigate the FWM conversion efficiency as functions of channel spacing, fiber length, and signal power. We show that the FWM in DWDM system with HNLF is almost 40 times larger than with NZDSF and 400 times larger than with SMF. We obtain the minima of WDM channel spacings limited by FWM for SMF, NZDSF, and HNLF. The FWM conversion efficiency approaches to a constant as the propagation length increases and is approximately an exponential function of the peak power of incident signals. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:439 / 443
页数:5
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