期刊
OPTICAL ENGINEERING
卷 40, 期 10, 页码 2265-2272出版社
SPIE-INT SOCIETY OPTICAL ENGINEERING
DOI: 10.1117/1.1402623
关键词
multimode interference; self-imaging effect; Talbot effect; polarization separation; multiplexing; demultiplexing; waveguide components; integrated optics
类别
An integrated optical device for the separation/combination of orthogonal polarizations is described. The device relies on simultaneous symmetric and antisymmetric 1 x 1 off-center self-imaging. Calculations show that 90% throughput and 0.1 % crosstalk can often be attained, with device length less than or comparable to other integrated optical polarization separation devices. The device is passive, requires only a single mask, and is not restricted to a specific fabrication method or material system. Devices can even be made in isotropic material systems with a deep etch. Simulation results are presented for the lithium niobate and glass waveguide material systems. (C) 2001 Society of Photo-Optical Instrumentation Engineers.
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