Journal
LASER PHYSICS
Volume 28, Issue 11, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1555-6611/aadf18
Keywords
polarization beam splitter; integrated optics; directional coupler; C-band; silicon waveguide
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Funding
- Russian Foundation for Basic Research [16-29-09528]
- Ministry of Science and Higher Education within the State assignment FSRC Crystallography and Photonics RAS [007-GZ/Ch3363/26]
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In this paper, a compact design of a polarization beam splitter is proposed, based on the principle of a directional coupler. A bridge waveguide is placed between two conventional silicon waveguide directional couplers. The optimized length of the bridge waveguide is obtained at 11 mu m, where the directional coupler acts as a polarization beam splitter. As a result, maximum polarization extinction ratios of 20.32 dB and 15.4 dB are obtained for the TE- and TM-modes, respectively, at a 1536 nm wavelength.
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