零色散波长附近双芯光纤中振荡束缚孤子的色散辐射和状态切换
Dispersive radiation and regime switching of oscillating bound solitons in twin-core fibers near zero-dispersion wavelength
摘要：
研究了在零色散波长附近，高阶色散项存在时，双芯光纤中束缚孤子产生的共振辐射。我们提出了色散波产生机制的理论描述，并推导出共振条件。三阶色散项的存在导致多色色散辐射的产生，并导致从质心振荡到振幅振荡的过渡。在对称四阶色散的情况下，这种转变不会再现。
英文摘要：
We study resonant radiation generated by bound solitons in a twin-core fiber near zero-dispersion wavelength, in the presence of higher order dispersion terms. We propose a theoretical description of dispersive wave generation mechanism and derive resonance conditions. The presence of third order dispersion term leads to generation of polychromatic dispersive radiation and transition from the regime of center of mass oscillations to the regime of amplitude oscillations. Such a transition is not reproduced in the case of symmetric fourth order dispersion.
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