Mode converter based on ring resonator for integrated photonics

Ruslan V. Kutluyarov, Vladimir S. Lyubopytov, Denis M. Fatkhiev, Albert Kh Sultanov

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


In this paper we propose design of the mode converter for implementing in photonic integrated circuits. Mode converter consists of single-mode ring resonator, single-mode access waveguide and multimode access waveguide, and we propose using of vertical coupling, i.e. locating waveguides under the ring with little gap. Using finite difference time domain simulation we showed high efficiency of proposed device design. We showed dependence of the device performance on the shape of multimode waveguide coupler: straight waveguide provide low level of mode crosstalk, "pulley coupling" scheme with small arc angle (about 13 degrees) provide strong wavelength selectivity. Devices with proposed design is suitable for SDM-WDM systems.

Original languageEnglish
Title of host publicationOptical Technologies for Telecommunications 2019
EditorsVladimir A. Andreev, Anton V. Bourdine, Vladimir A. Burdin, Oleg G. Morozov, Albert H. Sultanov
ISBN (Electronic)9781510638396
Publication statusPublished - 2020
Externally publishedYes
EventOptical Technologies for Telecommunications 2019 - Kazan, Russian Federation
Duration: 19 Nov 201921 Nov 2019

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


ConferenceOptical Technologies for Telecommunications 2019
Country/TerritoryRussian Federation


  • integrated photonics
  • mode converter
  • PIC
  • ring resonator
  • silicon photonics


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