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新型1.3/1.55µm波長分波解多工器

A Novel 1.3/1.55μm Wavelength Demultiplexer

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摘要


我們提出一種新型的1.3/1.55µm波長解多工器,並使用磷化銦材料系統,因此方便與雷射和光偵測器積體化在一起。爲了縮短元件長度並增加波長變動容忍度,我們在多模干涉結構裡面旋轉一個週期漸變光柵。藉由雙向光束傳播法來模擬此元件,結果顯示此解多工器具有很低的插入損耗和高的隔離度。本文也將描述光柵的製作方法。

並列摘要


We propose a novel 1.3/1.55μm wavelength demultiplexer for integration with lasers and detectors on the InP material system. A chirp grating is placed inside a multimode interference (MMI) structure to shorten the device length and increase wavelength tolerance. The simulation using the bi-directional beam propagation method proves that the demultiplexer can have very low insertion loss and high isolation ratio. The approach of grating fabrication is also described.

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