Photonics Research, 2014, 2 (3): 03000A14, Published Online: Nov. 5, 2014
Parallel-core-type polarization rotator for silicon wire waveguide platform Download: 603次
Abstract
We describe a polarization rotator based on a parallel-core structure consisting of a silicon nanowire waveguide and a silicon-nitride waveguide. The 60-μm-long rotator provides a polarization extinction ratio of more than 10 dB with excess loss of less than 1 dB. In addition, the extremely wide bandwidth of more than 150 nm expected from calculations is confirmed in experiments. A study of the fabrication tolerance of our rotator indicates that fabrication error of around 25 nm is allowable.
Hiroshi Fukuda, Kazumi Wada. Parallel-core-type polarization rotator for silicon wire waveguide platform[J]. Photonics Research, 2014, 2(3): 03000A14.