Compression of ultrashort fundamental solitons in dispersion decreasing fibers (DDFs) with negative third-order dispersion (TOD) is investigated by solving the generalized nonlinear Schrodinger equation numerically. In contrast to the degradation of soliton compression due to the combined effects of positive TOD and Raman self-scattering (RSS), the combined effects of negative TOD and RSS can significantly enhance soliton compression in DDF's. The enhancement is second-order dispersion toward the longer wavelength.
机构:
Chinese Univ Hong Kong, Dept Elect Engn, Shatin, Hong Kong, Peoples R ChinaChinese Univ Hong Kong, Dept Elect Engn, Shatin, Hong Kong, Peoples R China
Chan, KT
Cao, WH
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机构:Chinese Univ Hong Kong, Dept Elect Engn, Shatin, Hong Kong, Peoples R China