Journal
OPTICS LETTERS
Volume 39, Issue 16, Pages 4703-4706Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.39.004703
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Funding
- Gernot Pomrenke of the Air Force Office of Scientific Research [FA9550-10-1-0439, FA9550-13-1-0027]
- Singapore MOE under ACRF Tier 1 NUS startup grant
- Portage Bay Photonics, LLC.
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We present an ultracompact (15.3 mu m long) and high-efficiency silicon-on-insulator polarization rotator designed for polarization-diversified circuits. The rotator is comprised of a bilevel-tapered TM0-to-TE1 mode converter and a novel bent-tapered TE1-to-TE0 mode converter. The rotator has a simulated polarization conversion loss lower than 0.2 dB and a polarization-extinction ratio larger than 25 dB over a wavelength range of 80 nm around 1550 nm. The rotator has a SiO2 top-cladding and can be fabricated in a CMOS-compatible process. (C) 2014 Optical Society of America
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