Modal Birefringence Dependent Supercontinuum Due to Cross-Phase Modulation in a Dispersion-Flattened/Decreasing Fiber

被引：0
|
作者：
Hiroyasu Sone
Tasuku Arai
Masaaki Imai
Yoh Imai
机构：
[1] Muroran Institute of Technology,Department of Electrical and Electronic Engineering
[2] Kitami Institute of Technology,Department of Computer Science
[3] Kyushu Institute of Technology,Department of Computer Science and Electronics
[4] Ibaraki University,Department of Electrical and Electronic Engineering
来源：
Optical Review | 2002年 / 9卷
关键词：
nonlinear fiber optics; optical soliton propagation; cross-phase modulation (XPM); modal birefringence; supercontinuum spectrum; dispersion-flattened/decreasing fiber;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
It was found by numerical analysis that a 320 nm wide and flat spectrum at 20 dB less than the central maximum intensity is generated from cross-phase modulated soliton pulses with 3.5 ps pulse width and 2.3 W peak power, which are propagated through a 2.4km length of dispersion-flattened/decreasing fiber (DFDF). The cross-phase modulation (XPM) at a central wavelength of 1.55 μm is achieved by exciting two orthogonally polarized modes into the principal axes. The wave-vector mismatch between the orthogonal pulses can be neglected because of soliton trapping when the modal birefringence of the DFDF is less than |nox - n0y| = 10−6. The effect of modal birefringence on supercontinuum generation is discussed in temporal and spectral regimes by numerical analysis.
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页码：89 / 93
页数：4
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