Numerical analysis of transmission characteristic of optical solitons in Gaussian-apodized fiber Bragg gratings
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Department of Physics, Inner Mongolia University, Huhhot 010021, China;
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Department of Physics, Inner Mongolia Polytechnic University, Huhhot 010062, China;
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Inner Mongolia Chemical Engineering Professional Collage, Huhhot 010010, China
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Corresponding author:
JIA Wei-guo, jwg1960@163.com
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Received Date:
2008-01-02
Accepted Date:
2008-05-19
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Abstract
Based on the framework of the coupled modes theory, transmission of the Bragg solitons and interaction of the Bragg solitons were simulated with the finite-difference scheme in Gaussian-apodized fiber Bragg gratings under the condition with the transmission speed irrelevant to the transmission distance.According to the numerical results, the peak power of Bragg solitons changes with different incident peak power and pulse width.And interaction of two solitons relies on their relative phase and amplitude.When the initial pulse is chirped,transmission of Bragg solitons is broadened (positive chirp) or narrowed (negative chirp) and restricted by Gaussian-apodized gratings all the time.
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