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Robust and environmental insensitive fiber optic Sagnac interferometer for microwave photonic applications

机译:坚固耐用且对环境不敏感的Sagnac光纤干涉仪,用于微波光子应用

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摘要

A technique that allows a fiber optic Sagnac interferometer based microwave photonic device to be implemented using non-polarization maintaining components inside the Sagnac loop while still obtaining an output that is insensitive to changes in environmental conditions is presented. It is based on inserting the non-polarization maintaining components in between a polarization beam combiner and a Faraday rotator mirror inside the loop. The technique also introduces a phase bias to the light propagating inside the loop. Experimental results demonstrate that the discretely and continuously tunable Sagnac loop based signal processors implemented using non-polarization maintaining components have an environmentally insensitive frequency response.
机译:提出了一种技术,该技术允许使用Sagnac环路内的非偏振保持组件来实现基于光纤Sagnac干涉仪的微波光子器件,同时仍获得对环境条件变化不敏感的输出。它是基于将非偏振保持组件插入到环路内部的偏振光束组合器和法拉第旋转镜之间。该技术还将相位偏置引入到环路内部传播的光中。实验结果表明,使用无极化保持组件实现的基于Sagnac环路的离散且连续可调的信号处理器具有对环境不敏感的频率响应。

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