Photorefractive long-period waveguide grating filter in lithium niobate strip waveguide
作者： Ming Zhang , Wen Chen , Liuwei Chen , Bisheng Quan , Yuling Liu
DOI: 10.1007/S11082-013-9867-X
关键词:
摘要: To fabricate a long-period waveguide grating (LPWG) filter in simple, reliable and low-cost way, novel LPWG scheme based on photorefractive is designed theoretically analyzed Ti-diffused strip embedded planar \(\hbox {LiNbO}_{3}\) waveguide. By means of effective index method coupled-mode theory, the processing conditions have been calculated. The minimum 100 % filtering length \(L=1.40\) cm coupling coefficient \(\kappa =112.23\,\hbox {m}^{-1}\) are obtained. can be used coarse wavelength division multiplexing system.
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