Abstract

A polarization beam splitter-rotator based on asymmetric directional coupling is proposed. An ultrashort cross-polarization coupling length of 7.7 μm is achieved by manipulating the optical field distribution via the plasmonic effect, which is the shortest one reported so far, to the best of our knowledge. At the wavelength of 1.55 μm, the extinction ratios are as high as 50.9 dB and 28.2 dB for fundamental transverse magnetic (TM0) and transverse electric (TE0) polarizations, respectively, and the corresponding insertion losses are 1.545 dB and 0.037 dB. In addition, the TM0-to-TE0 polarization conversion efficiency is higher than 95% within a bandwidth of 70 nm.

© 2017 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Broadband silicon polarization beam splitter with a high extinction ratio using a triple-bent-waveguide directional coupler

Jun Rong Ong, Thomas Y. L. Ang, Ezgi Sahin, Bryan Pawlina, G. F. R. Chen, D. T. H. Tan, Soon Thor Lim, and Ching Eng Png
Opt. Lett. 42(21) 4450-4453 (2017)

Ultracompact polarization beam splitter based on a dielectric–hybrid plasmonic–dielectric coupler

Fei Lou, Daoxin Dai, and Lech Wosinski
Opt. Lett. 37(16) 3372-3374 (2012)

High-extinction-ratio directional-coupler-type polarization beam splitter with a bridged silicon wire waveguide

Yoohan Kim, Moon Hyeok Lee, Yudeuk Kim, and Kyong Hon Kim
Opt. Lett. 43(14) 3241-3244 (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 (7)

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 (5)

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