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首页> 外文期刊>Optics Letters >Polarization-beam-splitter-less integrated dual-polarization coherent receiver
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Polarization-beam-splitter-less integrated dual-polarization coherent receiver

机译:无极化分束器的集成双极化相干接收机

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摘要

Conventional dual-polarization coherent receivers require polarization beam splitters for either the signal or the local oscillator path. This severely hinders monolithic integration, since integrated polarization splitting devices often exhibit stringent fabrication tolerances. Here we propose a dual-polarization monolithically integrated coherent receiver architecture that completely avoids the use of polarization splitting elements. Polarization management is instead achieved by adequately engineering the birefringence of the interconnecting waveguides. The resultant receiver is highly tolerant to fabrication deviations and thus offers a completely new route for monolithic integration of dual-polarization receivers without any type of active tuning.
机译:常规的双极化相干接收机需要用于信号或本地振荡器路径的极化分束器。由于集成的偏振分离装置通常表现出严格的制造公差,因此这严重阻碍了单片集成。在这里,我们提出了一种双极化单片集成相干接收机架构,该架构完全避免了使用极化分裂元件。而是通过适当地设计互连波导的双折射来实现偏振管理。最终的接收器对制造偏差具有很高的容忍度,因此为双极化接收器的单片集成提供了一条全新的途径,而无需进行任何类型的有源调谐。

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