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首页> 外文期刊>Applied optics >Segmented chirped grating for coarse wavelength division demultiplexing with multimode optical fibers
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Segmented chirped grating for coarse wavelength division demultiplexing with multimode optical fibers

机译：用于多模光纤的粗波分复用的分段chi光栅

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摘要

A chirped grating segmented into partitions each having a constant blaze angle to use in a demultiplexer for coarse wavelength division multiplexing with multimode optical fibers is developed. Its designed configuration utilizes a resonance region to achieve high diffraction efficiency and large dispersion. The width, blaze angle, and diffraction order of each partition were optimized by vector diffraction analysis. The diffraction loss of the manufactured grating was less than 1.5 dB, and polarization-dependent loss was less than 0.6 dB within a wavelength width of at least 70 nm. It is confirmed that a demultiplexer with the developed chirped grating had a wide passband and low cross talk.
机译：研制了一种into光栅，该grating光栅被分成多个分区，每个分区具有恒定的闪耀角，用于在多路分解器中与多模光纤进行粗波分复用。其设计配置利用共振区域实现高衍射效率和大色散。通过矢量衍射分析对每个分区的宽度，闪耀角和衍射顺序进行了优化。在至少70nm的波长宽度内，制造的光栅的衍射损耗小于1.5dB，并且偏振相关损耗小于0.6dB。可以确认具有发达的with光栅的多路分解器具有较宽的通带和较低的串扰。

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