An efficient TE–TM polarization converter built on a silicon-on-insulator nanophotonic platform is demonstrated. The strong cross-polarization coupling effect in air-cladded photonic-wire waveguides is employed to realize the conversion. A peak TE–TM coupling efficiency of 87% ( insertion loss) is measured experimentally. A polarization conversion efficiency of with an overall insertion loss of is obtained in a wavelength range of . The proposed device is compact, with a total length of and can be fabricated with one lithography and etching step.
© 2011 Optical Society of AmericaFull Article | PDF Article
Chyong-Hua Chen, Lin Pang, Chia-Ho Tsai, Uriel Levy, and Yeshaiahu Fainman
Opt. Express 13(14) 5347-5352 (2005)
Jing Zhang, Tsung-Yang Liow, Mingbin Yu, Guo-Qiang Lo, and Dim-Lee Kwong
Opt. Express 18(24) 25264-25270 (2010)
Liu Liu, Yunhong Ding, Kresten Yvind, and Jørn M. Hvam
Opt. Express 19(13) 12646-12651 (2011)