SWG-based compact broadband two-mode multiplexer on SOI platform

  • Manoranjan Minz
  • , Darpan Mishra
  • , Ramesh Kumar Sonkar

Research output: Chapter in Book/Report/Conference proceedingsChapterpeer-review

Abstract

This paper reports a compact two-mode silicon optical multiplexer using subwavelength grating (SWG) structures. The coupler section in the proposed device consists of an SWG-based access waveguide and a multimode strip bus waveguide. Tapers have been employed for adiabatic transition of the fundamental TM modes of the input strip waveguides to the respective fundamental TM modes of the SWG-based waveguide and multimode strip waveguide. The duty cycle and grating period are tailored to couple the first-order TM mode of the strip waveguide and the fundamental TM mode of the SWGbased waveguide. A 3D finite-difference time-domain simulation is performed to study the device performance. The multiplexer is very compact with a device length of 26 μm, which exhibits a return loss of >35.62 dB, crosstalk of <-33.60 dB, and insertion loss of <0.29 dB, at 1550 nm.

Original languageEnglish
Title of host publicationTENSYMP 2021 - 2021 IEEE Region 10 Symposium
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781665400268
DOIs
Publication statusPublished - 23 Aug 2021
Externally publishedYes
Event2021 IEEE Region 10 Symposium, TENSYMP 2021 - Jeju, Korea, Republic of
Duration: 23 Aug 202125 Aug 2021

Publication series

NameTENSYMP 2021 - 2021 IEEE Region 10 Symposium

Conference

Conference2021 IEEE Region 10 Symposium, TENSYMP 2021
Country/TerritoryKorea, Republic of
CityJeju
Period23/08/2125/08/21

Keywords

  • grating
  • multiplexer
  • silicon
  • subwavelength

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