Abstract

A silicon-based polarization rotator (PR) for cross-slot waveguides is proposed and analyzed. The rotation region of the PR is formed by removing one of the silicon wires from a cross-slot waveguide, resulting in a strong hybridity for the lowest eigenmodes. As a result, the TE (TM) polarization can be rotated efficiently to the TM (TE) polarization at a length of 18.9 μm. The results show that the extinction ratio (ER) (insertion loss) is 31.6 (0.37) dB for TE-to-TM mode and 31.9 (0.37) dB for TM-to-TE mode. Moreover, a wide bandwidth of 230nm for both polarizations is obtained for keeping the ER over 20 dB. In addition, fabrication tolerances to the structural parameters are investigated, and field evolution along the propagation distance is also presented.

© 2015 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Compact polarization rotator for silicon-based slot waveguide structures

Jinbiao Xiao, Yin Xu, Jiayuan Wang, and Xiaohan Sun
Appl. Opt. 53(11) 2390-2397 (2014)

Design of a compact polarization demultiplexer for silicon-based slot waveguides

Yin Xu, Jinbiao Xiao, and Xiaohan Sun
Appl. Opt. 53(35) 8305-8312 (2014)

Broadband TE-pass slot waveguide polarizer using an asymmetrical directional coupler

Bin Ni and Jinbiao Xiao
Appl. Opt. 57(15) 4032-4038 (2018)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (8)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (7)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription