Integrated Mach–Zehnder interferometer based on liquid crystal evanescent field tuning

Caño García, Manuel and Poudereux Sánchez, David and Gordo Quiroga, Fernando José and Geday, Morten Andreas and Otón Sánchez, José Manuel and Quintana Arregui, Xabier (2019). Integrated Mach–Zehnder interferometer based on liquid crystal evanescent field tuning. "Crystals", v. 9 (n. 5); p. 225. ISSN 2073-4352. https://doi.org/10.3390/cryst9050225.

Description

Title: Integrated Mach–Zehnder interferometer based on liquid crystal evanescent field tuning
Author/s:
  • Caño García, Manuel
  • Poudereux Sánchez, David
  • Gordo Quiroga, Fernando José
  • Geday, Morten Andreas
  • Otón Sánchez, José Manuel
  • Quintana Arregui, Xabier
Item Type: Article
Título de Revista/Publicación: Crystals
Date: 2019
ISSN: 2073-4352
Volume: 9
Subjects:
Freetext Keywords: waveguide, polarization-selective devices, optical switching devices, optoelectronics
Faculty: E.T.S.I. Telecomunicación (UPM)
Department: Tecnología Fotónica y Bioingeniería
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

In this work, the performance of a Mach–Zehnder interferometer manufactured in silicon nitride with a liquid crystal cladding is studied. The device consists of two multi-mode interference couplers linked by two rectangular waveguides, the cladding of one of which is a liquid crystal. The structure demonstrates the potential of using liquid crystals as tunable cladding material in simple waveguides as well as in more complex coupling or modulating structures. Liquid crystal cladding permits a local fine-tuning of the effective refractive index of the waveguide, avoiding coarse global temperature control. The study is realized in the visible region (632.8 nm), for its intrinsic interest region in (bio-)sensing or metrology.

Funding Projects

TypeCodeAcronymLeaderTitle
Government of SpainTEC2016-77242-C3-2-RRETOSUnspecifiedUnspecified
Madrid Regional GovernmentS2018/NMT-4326SINFOTON2-CMUnspecifiedUnspecified
Government of SpainBES-2014-070964UnspecifiedUnspecifiedUnspecified

More information

Item ID: 54957
DC Identifier: http://oa.upm.es/54957/
OAI Identifier: oai:oa.upm.es:54957
DOI: 10.3390/cryst9050225
Official URL: https://www.mdpi.com/2073-4352/9/5/225/htm
Deposited by: Memoria Investigacion
Deposited on: 20 May 2019 15:52
Last Modified: 20 May 2019 15:52
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