Asymmetric W-shaped and M-shaped soliton pulse generated from a weak modulation in an exponential dispersion decreasing fiber<xref rid="cpb_26_12_120503_fn1" ref-type="fn">*</xref> <fn id="cpb_26_12_120503_fn1"> <label>*</label> <p>Project supported by the National Natural Science Foundation of China (Grant No. 11475135), the Fund from Shaanxi Province Science Association of Colleges and Universities (Grant No. 20160216), and Guangxi Provincial Education Department Research Project, China (Grant No. 2017KY0776).</p> </fn>

Asymmetric W-shaped and M-shaped soliton pulse generated from a weak modulation in an exponential dispersion decreasing fiber* *

Project supported by the National Natural Science Foundation of China (Grant No. 11475135), the Fund from Shaanxi Province Science Association of Colleges and Universities (Grant No. 20160216), and Guangxi Provincial Education Department Research Project, China (Grant No. 2017KY0776).

Liu Xiang-Shu^{1, 2}, Zhao Li-Chen^{1, 3}, Duan Liang^{1, 3}, Yang Zhan-Ying^{1, 3, †}, Yang Wen-Li^{3, 4}

(color online) The evolution of signal in two components corresponding to the process that one weak modulation signal evolves into asymmetric W-shaped soliton pulse and M-shaped soliton pulse (a) for |φ₁| with ω_r = 0.85 THz and (b) for |φ₂| with ω_r = 10.65 THz. The profile of signal at ξ = 2000 m, ξ = 3000 m, and ξ → ∞ ((c) for |φ₁| with ω_r = 0.85 THz and (d) for |φ₂| with ω_r = 10.65 THz). The other parameters are a = 1, b = −1, s = 1, γ = 0.5, and ξ₀ = 750 m.