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Modulation instability of near frequency propagation regime in polarization-maintaining fibers

Jia Wei-Guo Shi Pei-Ming Yang Xing-Yu Zhang Jun-Ping Fan Guo-Liang

Modulation instability of near frequency propagation regime in polarization-maintaining fibers

Jia Wei-Guo, Shi Pei-Ming, Yang Xing-Yu, Zhang Jun-Ping, Fan Guo-Liang
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  • PDF Downloads:  1014
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Publishing process
  • Received Date:  13 October 2005
  • Accepted Date:  13 January 2006
  • Published Online:  20 September 2006

Modulation instability of near frequency propagation regime in polarization-maintaining fibers

  • 1. 内蒙古大学物理系,呼和浩特 010021

Abstract: The coherently coupled nonlinear Schrdinger (NLS) equation of the propagation of a light pulse in a fiber has been utilized. We have studied modulation instability of linearly polarized lights with near frequency not only in anomalous dispersion regime but also in normal dispersion regime in polarization-maintaining fibers, when the polarization direction along the two birefringence axes are orthogonal and the intensities along the two birefringence axes are equal. The results show that modulation instability can be produced both in anomalous and normal dispersion regimes. The input pulses have obviously different gain spectra when input power regime is different in normal dispersion regime. Furthermore, the gain spectra are different for different wave lengths (or different frequencies) when the power of input pulse is kept constant.

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