3D Astrophotonic Tricoupler Device for Exoplanet Detection

Elizabeth Arcadi, Jacinda Webb, Glen Douglass, Michael J. Withford, Marc Antoine Martinod, Teresa Klinner-Teo, Peter Tuthill, Barnaby Norris, Olivier Guyon, Simon Gross

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Nulling interferometry was first introduced in the 1970's and proved to be successful in detecting and imaging exoplanets. Through the use of a photonic device called a 3D tricoupler we can perform both nulling interferometry and fringe tracking simultaneously. A 3D tricoupler device comprises of 3 single mode waveguides which can provide achromatic interferometric suppression of star light. We present laboratory characterisation of the 3D tricouplers fabricated by the femtosecond direct write technique as well as numerical solutions to coupled mode equations providing a parameter scan to optimise fabrication. We also present polarisation dependency of the tricoupler devices as well as an interferometric analysis of the output intensity as a function of input phase.

Original languageEnglish (US)
Title of host publicationFrontiers in Optics
Subtitle of host publicationProceedings Frontiers in Optics + Laser Science 2023, FiO, LS 2023
PublisherOptical Society of America
ISBN (Electronic)9781957171296
DOIs
StatePublished - 2023
EventFrontiers in Optics + Laser Science 2023, FiO, LS 203: Part of Frontiers in Optics + Laser Science 2023 - Tacoma, United States
Duration: Oct 9 2023Oct 12 2023

Publication series

NameFrontiers in Optics: Proceedings Frontiers in Optics + Laser Science 2023, FiO, LS 2023

Conference

ConferenceFrontiers in Optics + Laser Science 2023, FiO, LS 203: Part of Frontiers in Optics + Laser Science 2023
Country/TerritoryUnited States
CityTacoma
Period10/9/2310/12/23

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Space and Planetary Science
  • Control and Systems Engineering
  • Electrical and Electronic Engineering
  • General Computer Science
  • Instrumentation

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