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Title: Liquid Crystal Based Inverted Rib Waveguide
Authors: Tripathi U.S.
Rastogi, Vipul K.
Singh K.
Gupta A.K.
Khare S.
Dixit N.
Pant K.
Published in: Springer Proceedings in Physics
International Conference on Optics and Electro-optics, ICOL 2019
Abstract: We report tunable liquid–crystal-core inverted rib waveguides, in which the optical guidance can be electrically tuned between the single-mode and multi-mode. The modal characteristics of the LC based rib structure in presence and absence of externally applied electric field have been simulated by using the finite difference mode (FDM) method. The structure has also been fabricated on fused silica glass substrate. We show the conversion of fundamental mode profile into a multi-mode profile at 1550 nm wavelength by the application of electric field. The proposed liquid crystal based waveguide has the advantages of on-chip low-cost fabrication. © 2021, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.
Citation: Springer Proceedings in Physics (2021), 258: 157-160
Issue Date: 2021
Publisher: Springer Science and Business Media Deutschland GmbH
Keywords: Electric fields
Fused silica
Fundamental mode profiles
Inverted-rib waveguides
Low cost fabrication
Modal characteristics
Optical guidance
Rib structure
Single mode
Liquid crystals
ISBN: 9.78981E+12
ISSN: 9308989
Author Scopus IDs: 57208401047
Author Affiliations: Tripathi, U.S., Instruments Research & Development Establishment, Dehradun, Uttarakhand, 248008, India, Department of Physics, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand, 247667, India
Rastogi, V., Department of Physics, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand, 247667, India
Corresponding Author: Tripathi, U.S.; Instruments Research & Development EstablishmentIndia; email:
Appears in Collections:Conference Publications [PH]

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