论文标题
基于单个蚀刻光栅装置的独立于极化的波长反复弹仪
Polarization-Independent Wavelength Demultiplexer Based on Single Etched Diffraction Grating Device
论文作者
论文摘要
在用于波长的多路复用（WDM）光学通信的收发器中，与极化兼容的接收器是必不可少的，因为通过网络纤维传输后光极化是不可预测的。然而，强的波导双折射使在硅光子（SIPH）接收器中很难实现独立于极化的波长反复电路。在这里，我们利用了双折射效应，用于同时消除波长和极化，并在实验上证明了与SIPH平台上单个设备的新型独立于极化的波长反复电流。该原理在蚀刻的衍射光栅（EDG）上进行了验证，该原理成功将包含四个波长的任意极化光划分为具有单极化和单波长信号的八个通道。实验测量了依赖于极化的损失0.5-1.8 dB，最小插入损失为0.5 dB和串扰低于-30 dB。因此，开发了一种有希望的通用解决方案，用于实现独立于极化的WDM接收器和带有双向波导设备的SIPH和其他平台上的其他独立的独立设备。
Polarization-compatible receivers are indispensable in transceivers used for wavelength division multiplexing (WDM) optical communications, as light polarization is unpredictable after transmission through network fibers. However, the strong waveguide birefringence makes it difficult to realize a polarization-independent wavelength demultiplexer in a silicon photonic (SiPh) receiver. Here, we utilized the birefringence effect for simultaneously demultiplexing wavelengths and polarizations, and experimentally demonstrated a novel polarization-independent wavelength demultiplexer with a single device on a SiPh platform. The principle was validated on an etched diffraction grating (EDG), which successfully split the arbitrarily polarized light containing four wavelengths into eight channels with single-polarization and single-wavelength signals. Polarization-dependent losses of 0.5-1.8 dB, minimum insertion loss of 0.5 dB, and crosstalks lower than -30 dB were experimentally measured. Thus, a promising general solution was developed for implementing polarization-independent WDM receivers and other polarization-independent devices on SiPh and other platforms with birefringent waveguide devices.
