Departmental Bulletin Paper 非欠損コアを有する導波路型偏波変換器

力久, 祐太

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A polarization converter of a silicon waveguide is analyzed by the imaginary-distance beampropagation method based on Yee’s mesh and the finite-difference time-domain method. It is revealed at a wavelength of 1.55 µm that the polarization conversion length is 15 µm with an insertion loss of 0.47 dB. An extinction ratio of more than 20 dB is obtained over a wavelength range of 1.54 to 1.56 µm. Key Words : Polarization converter, Metal strip
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