紀要論文 導波路型偏波変換器の効率的設計法
EFFICIENT DESIGN METHOD OF WAVEGUIDE-TYPE POLARIZATION CONVERTERS

杉山, 僚  ,  SUGIYAMA, Ryo

562015-03-24 , 法政大学大学院理工学・工学研究科
ISSN:21879923
NII書誌ID(NCID):AA12677220
内容記述
An reasonably accurate technique for evaluating the properties of asymmetric waveguide-type polarization converters is proposed, in which only the eigenmode fields are used to calculate the full-vectorial overlap integral. A butt joint between slot and Si-wire waveguides is investigated by the imaginary-distance beam propagation method based on Yee’s mesh and finite-difference time-domain method. This structure transforms a slot waveguide into a Si-wire waveguide, while converting the polarization. An extinction ratio of more than 15 dB is obtained with a relatively low loss of 1 dB over a wavelength range of 1.53 μm to 1.58 μm.
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http://repo.lib.hosei.ac.jp/bitstream/10114/10440/1/13R3133.pdf

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