Journal
OPTICS LETTERS
Volume 42, Issue 2, Pages 235-238Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.42.000235
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Funding
- Natural Sciences and Engineering Research Council of Canada (NSERC) [414122-12, 2014-05271]
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We design and demonstrate a compact broadband polarization beam splitter (PBS) using a symmetric directional coupler with sinusoidal bends on a silicon-on-insulator platform. The sinusoidal bends in our PBS suppress the power exchange between two parallel symmetric strip wave-guides for the transverse-electric (TE) mode, while allowing for the maximum power transfer to the adjacent wave-guide for the transverse-magnetic (TM) mode. Our PBS has a nominal coupler length of 8.55 mu m, and it has an average extinction ratio (ER) of 12.0 dB for the TE mode, an average ER of 20.1 dB for the TM mode, an average polarization isolation (PI) of 20.6 dB for the through port, and an average PI of 11.5 dB for the cross port, all over a bandwidth of 100 nm. (C) 2017 Optical Society of America
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