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提出薄膜器件与光纤器件构成组合器件的概念 ,详细研究了薄膜Gires Tournois干涉仪型光学全通滤波器与光纤马赫曾德尔干涉仪组合成的波长交错器的传输特性。并讨论了反射系数、损耗、色散、耦合比等参量对器件性能的影响。最后 ,提出一个双向马赫曾德尔干涉仪组合器件的方案及其在双向波分复用系统中的应用。
The concept of the combination of thin film devices and optical fiber devices is proposed. The transmission characteristics of a wavelength interleaver composed of thin film Gires Tournois interferometer optical all-pass filter and optical fiber Mach-Zehnder interferometer are studied in detail. The effects of parameters such as reflection coefficient, loss, dispersion, coupling ratio on the performance of the device are also discussed. Finally, a scheme of bidirectional Mach-Zehnder interferometer combination device and its application in bidirectional wavelength division multiplexing system are proposed.