Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/341907
Type: Artigo
Title: Trimodal waveguide demonstration and its implementation as a high order mode interferometer for sensing application
Author: Ramirez, Jhonattan C.
Gabrielli, Lucas H.
Lechuga, Laura M.
Hernandez-Figueroa, Hugo E.
Abstract: This work implements and demonstrates an interferometric transducer based on a trimodal optical waveguide concept. The readout signal is generated from the interference between the fundamental and second-order modes propagating on a straight polymer waveguide. Intuitively, the higher the mode order, the larger the fraction of power (evanescent field) propagating outside the waveguide core, hence the higher the sensitivity that can be achieved when interfering against the strongly confined fundamental mode. The device is fabricated using the polymer SU-8 over a SiO2 substrate and shows a free spectral range of 20.2 nm and signal visibility of 5.7 dB, reaching a sensitivity to temperature variations of 0.0586 dB/degrees C. The results indicate that the proposed interferometer is a promising candidate for highly sensitive, compact and low-cost photonic transducer for implementation in different types of sensing applications, among these, point-of-care
Subject: Ótica integrada
Interferômetros
Country: Suíça
Editor: MDPI
Rights: Aberto
Identifier DOI: 10.3390/s19122821
Address: https://www.mdpi.com/1424-8220/19/12/2821
Date Issue: 2019
Appears in Collections:FEEC - Artigos e Outros Documentos

Files in This Item:
File Description SizeFormat 
000473762500173.pdf4.83 MBAdobe PDFView/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.