Optimization calculation of interleaver made of cascade Mach-Zehnder fiber interferometer
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摘要: 提出了一种具有方波形输出谱的级联马赫-曾德尔光纤干涉仪型梳状滤波器的优化计算方法。利用传输矩阵法将级联马赫-曾德尔光纤干涉仪的输出光谱表示为显式函数,采用独特的递推方法将理想的梳状滤波器的方波型输出函数展开,当这2个函数的系数对比时,有时候没有精确解,此时利用Matlab,通过特别的优化计算,可以得到级联马赫-曾德尔光纤干涉仪的近似结构参数,使其输出谱近似为方波。设计实例表明:此种优化计算方法非常方便、灵活和有效。
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关键词:
- 级联马赫-曾德尔干涉仪 /
- 梳状滤波器 /
- Matlab /
- 优化计算
Abstract: An optimization calculation of interleaver made of cascade Mach-Zehnder fiber interferometer with square wave is put forward. Based on transmit-matrix, the output spectrum from the cascade M-Z interferometer can be expressed as explicit function, the square wave output function of perfect interleaver can be expanded in a unique recursion way. Sometimes there is no accurate outcome when the terms of the two functions are compared, but approximate structureparameter of cascade Mach-Zehnder fiber interferometer can be obtained by optimizing calculation method with Matlab, which can make the output-spectrum an approximate square wave. The design example indicates that this method is convenient, flexible and effective.-
Keywords:
- cascade Mach-Zehnder interferometer /
- interleaver /
- Matlab /
- optimization calculation
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