Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Compact and broadband polarization beam splitter based on a silicon nitride augmented low-index guiding structure

Not Accessible

Your library or personal account may give you access

Abstract

We propose a compact polarization beam splitter (PBS) based on a silicon nitride enhanced silicon-on-insulator platform using an augmented low-index guiding (ALIG) waveguide structure. In the ALIG structure, the TM mode is mostly confined in the low-index silicon nitride, while the TE mode is confined in the high-index silicon. Since the two modes are confined in two separate layers, their properties can be controlled independently. The PBS is formed using an asymmetric multimode interference (MMI) section. The TM mode is directed to an output port by the ALIG waveguide, while the TE mode is coupled to the other output port via the multimode interferometer. Such a PBS has a very small footprint, low insertion loss, high polarization extinction ratio, and broadband response.

© 2015 Optical Society of America

Full Article  |  PDF Article
More Like This
Polarization rotator based on augmented low-index-guiding waveguide on silicon nitride/silicon-on-insulator platform

X. Sun, M. Z. Alam, J. S. Aitchison, and M. Mojahedi
Opt. Lett. 41(14) 3229-3232 (2016)

Ultracompact and broadband polarization beam splitter based on polarization-dependent critical guiding condition

Zhoufeng Ying, Guanghui Wang, Xuping Zhang, Ho-pui Ho, and Ying Huang
Opt. Lett. 40(9) 2134-2137 (2015)

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 Optica member, or as an authorized user of your institution.

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

Figures (12)

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

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

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved