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Abstract

Previous work have shown that the combined effects of negative third-order dispersion (TOD) and Raman self-scattering (RSS) can significantly enhance soliton compression in dispersion decreasing fibers (DDFs). In this paper, the effects of the negative TOD coefficient and the effective amplification of DDF′s on the performance of soliton compression are investigated. It is shown that for a given initial soliton width and a given effective amplification, there exists an optimum value of the negative TOD coefficient of the DDF at which the enhancement in soliton compression is maximum. It is also shown that the compression enhancement saturates when the effective amplification exceeds a certain value, which has been explained as a compromise between the higher-order effects induced increase of the ratio of input to output group-velocity dispersion coefficients of the DDF and the TOD induced non-adiabatic compression characteristics. The dependence of the compression enhancement on the initial soliton width have also be studied and the scheme is found works well for solitons with initial widths less than 3 ps.

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中图分类号:TN24

所属栏目:Optical Solitions

基金项目:Supported by the Natural Science Foundation of Guangdong Province (Project number:990831) and Foundation for University Key Techer by the Ministry of Education.

收稿日期:2000-08-22

修改稿日期:2001-02-05

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CAO Wenhua:Department of Electronic & Information Engineering, Wuyi University, Jiangmen 529020, China
GUO Qi:Institute of Quantum Electronics, South China Normal University, Guangzhou 510631, China
LIU Songhao:Institute of Quantum Electronics, South China Normal University, Guangzhou 510631, China

备注:CAO Wenhua received the B.S. degree from Anhui University, Hefei, China, in 1985, the M.S. degree from Anhui Institute of Optics and Fine Mechanics, The Chinese Academy of Sciences, Hefei, China, in 1988, and the Ph.D. degree from University of Science & Technology of China, Hefei, Anhui, China, in 1994, all in physics. From 1988 to 1991 he worked at the Key State Laboratory for Ultrafast Laser Spectroscopy, Zhongshan University, Guangzhou,China, where his research work was mainly in the fields of computer analog I/O, and the generation and measurement of ultrashort laser pulses. From 1998 to 2000 he was invited by Chinese University of Hong Kong as a Postdoctoral Fellow in the Electronic Engineering Department. He is currently a professor of Electronic Engineering Department of Wuyi University. His research areas include generation and propagation of ultrashort laser pulses in optical fibers, nonlinear optical switch, and WDM soliton communication.

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引用该论文

CAO Wenhua,GUO Qi,LIU Songhao. [J]. 中国激光(英文版), 2001, 10(6): 465-471

CAO Wenhua,GUO Qi,LIU Songhao. Enhanced Compression of Fundamental Solitons in Dispersion Decreasing Fibers with Negative Third-order Dispersion Ⅱ. Effects of Fiber Characteristics and Initial Soliton Width[J]. Chinese Journal of Lasers B, 2001, 10(6): 465-471

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