Generation of lossy mode resonances in a printed optical waveguide

  • Rebeca Dávila*
  • , Frank Martínez
  • , Abián B. Socorro
  • , César Elosúa
  • , Aritz Ozcariz
  • , Pedro J. Rivero
  • , Ignacio R. Matías
  • , Jesus M. Corres
  • *Corresponding author for this work

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

Abstract

This work demonstrates the generation of a Lossy Mode Resonance (LMR) on a printed waveguide and the potential use of the structure for refractive index detection. The printed waveguide was fabricated using NOA 61 as the ink, a needle of 50 μm internal diameter and an electrohydrodynamic (EHD) printing machine. The waveguide is coupled to the input/output fibers using a micro-positioning system. A SnO2 thin film was deposited onto the waveguide using a DC sputtering machine. The LMR spectrum generated is obtained while the sensor is in contact with ultrapure water. The shift of the LMR spectrum was analyzed as a function of exposure to different refractive indices. The sensitivity, FWHM, and FOM of the evanescent-based printed optical sensor were determined.

Original languageEnglish
Title of host publication29th International Conference on Optical Fiber Sensors
EditorsJose Luis Santos, Manuel Lopez-Amo Sainz, Tong Sun
PublisherSPIE
ISBN (Electronic)9781510691872
DOIs
Publication statusPublished - 2025
Externally publishedYes
Event29th International Conference on Optical Fiber Sensors - Porto, Portugal
Duration: 25 May 202530 May 2025

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume13639
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference29th International Conference on Optical Fiber Sensors
Country/TerritoryPortugal
CityPorto
Period25/05/2530/05/25

Keywords

  • electrohydrodynamic (EHD) printing
  • LMR
  • printed optical sensor
  • refractometer

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