High Efficiency Multi-Taper Coupler based Optical Modulator

Ted G.L. Frumkin, Amiel A. Ishaaya, Zeev Zalevsky

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


This article focuses on electro-optical modulators and in particularly it concerns a high efficiency modulator based on a multi-taper coupler. The advantages achieved by adding a modulator located on the multi-taper are: increasing the efficiency, bandwidth, versatility and decreasing the propagation loss while decreasing the connection gate and the location on the PIC, all due to the Multi-Taper coupling sensitivity. Numerical simulations will show the feasibility of changing the coupling efficiency dramatically by a small change on the multi-taper coupler, where coupling efficiency changes dramatically, from 3dB loss up to 38dB loss. The fabrication process will be shown for manufacturing the multi-taper modulator.

Original languageEnglish
Title of host publicationPhysics and Simulation of Optoelectronic Devices XXXI
EditorsBernd Witzigmann, Marek Osinski, Yasuhiko Arakawa
ISBN (Electronic)9781510659353
StatePublished - 2023
EventPhysics and Simulation of Optoelectronic Devices XXXI 2023 - San Francisco, United States
Duration: 31 Jan 20232 Feb 2023

Publication series

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


ConferencePhysics and Simulation of Optoelectronic Devices XXXI 2023
Country/TerritoryUnited States
CitySan Francisco

Bibliographical note

Publisher Copyright:
© 2023 SPIE.


  • coupler
  • fabrication
  • modulator
  • multi-taper
  • refractive index


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