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

Broadband ultra-compact polarization splitter–rotator using diagonally overlapped bi-layer architecture

Not Accessible

Your library or personal account may give you access

Abstract

A broadband and ultra-compact polarization splitter–rotator based on diagonally overlapped bi-layer architecture and an asymmetrical directional coupler is proposed on a silicon-on-insulator platform. By leveraging the structure over supermode theory, a 1-dB bandwidth of 220 nm, extinction ratio (ER) of ${\lt}19\;\;{\rm{dB}}$, and cross talk (XT) of ${{\lt}- 15.85\;\;{\rm{dB}}}$ within the span of 1400–1700 nm and coupling length of 4.62 µm are achieved. In addition, ${{\rm{TM}}_0} {-} {{\rm{TE}}_0}$ conversion loss of ${\sim}0.19\;{\rm{dB}}$, ER of 35.88 dB, and XT of ${-}{30.46}\;{\rm{dB}}$ can be obtained at 1550 nm. The fabrication tolerances are also analyzed, indicating that the insertion losses remain below 1 dB over 1460–1620 nm in terms of width errors and layer-to-layer misalignments within ${\pm}10\;\;{\rm{nm}}$. The results show that the proposed device is very suitable to utilize between fibers and for polarization diversity of on-chip systems for broadband operation as well as ultra-compact integration.

© 2022 Optica Publishing Group

Full Article  |  PDF Article
More Like This
Broadband and CMOS compatible polarization splitter–rotator based on a bi-level taper

Xiaojuan She, Dawei Wang, Yingxuan Zhao, Haiyang Huang, Han Liao, Junbo Zhu, Yang Li, Zijian Zhu, Rui Huang, Xiang Liu, Qiu Chao, Zhen Sheng, and Fuwan Gan
Appl. Opt. 60(31) 9619-9623 (2021)

SOI-based compact mode- and polarization-division multiplexer for on-chip optical interconnects: design and simulation

Jyoti Prasad Nath, Nikhil Dhingra, Geetika J. Saxena, and Enakshi K. Sharma
Appl. Opt. 61(14) 4195-4203 (2022)

Broadband and highly efficient integrated polarization rotator designed by topology optimization

Rômulo A. de Paula, Yesica R. R. Bustamante, and Ivan Aldaya
Appl. Opt. 61(2) 463-470 (2022)

Data availability

Data underlying the results presented in this paper are not publicly available at this time but may be obtained from the authors upon reasonable request.

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

Tables (2)

You do not have subscription access to this journal. Article tables 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

Equations (7)

You do not have subscription access to this journal. Equations 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