Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7930902 | Optics Communications | 2015 | 7 Pages |
Abstract
We proposed an ultra compact polarization beam splitter (PBS) with a short coupling length of 2.82 μm consisting of a horizontally slotted waveguide (HSWG) and a hybrid plasmonic waveguide (HPWG). Only the TM-polarized mode can be supported in the HPWG, and the effective index, corresponding to the TM-polarized mode, in the HPWG is similar to that in the HSWG within a wide wavelength range. Consequently, the TM-polarized mode in the HSWG could be coupled into that in the HPWG. As a result, the TE- and TM-polarized modes are split. Such a PBS exhibits a high extinction ratio of up to â20 dB within an ultra wide wavelength range of 130 nm. Moreover, fabrication tolerances of the PBS are investigated.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Bing Sun, Yiping Wang, Yingjie Liu, Shen Liu, Changrui Liao, Ming-Yang Chen,