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Updated: May 31, 2026

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
Published on: September 5, 2019
Silicon-on-insulator polarization splitting and rotating device for polarization diversity circuits
Liu Liu1, Yunhong Ding, Kresten Yvind
1School for Information and Optoelectronic Science and Engineering, South China Normal University, 510006 Guangzhou, China. realdream.liuliu@gmail.com
Abstract:
A compact and efficient polarization splitting and rotating device built on the silicon-on-insulator platform is introduced, which can be readily used for the interface section of a polarization diversity circuit. The device is compact, with a total length of a few tens of microns. It is also simple, consisting of only two parallel silicon-on-insulator wire waveguides with different widths, and thus requiring no additional and nonstandard fabrication steps. A total insertion loss of -0.6 dB and an extinction ratio of 12 dB have been obtained experimentally in the whole C-band.
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