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Title: Depressed index clad fiber as a highly sensitive low-cost refractive index sensor
Authors: Hooda B.
Rastogi, Vipul K.
Published in: Optik
Abstract: We present a simple, compact, low cost and ultra high sensitive refractive index sensor based on depressed index clad fiber. The leakage loss of the fiber is highly sensitive to the variations in the refractive index of the outermost leaky layer. We utilize different portions of leakage loss curve to design sensors in different ranges, with different resolutions and for specific applications. One of such designed sensor work in the range 1.4573250–1.4573500, which corresponds to the refractive index of jojoba oil. The resolution within this range is of the order of 4 × 10−7 which is the maximum resolution of the sensor. The fabrication of the sensor only requires etching of some portion of the cladding of the fiber and does not require costly methods of wavelength or polarization interrogation. © 2018 Elsevier GmbH
Citation: Optik (2018), 170(): 237-241
Issue Date: 2018
Publisher: Elsevier GmbH
Keywords: Optical fiber
Refractive index
ISSN: 304026
Author Scopus IDs: 55838722000
Author Affiliations: Hooda, B., Department of Physics, Central University of Haryana, Mohindergarh, 123031, India
Rastogi, V., Department of Physics, Indian Institute of Technology Roorkee, Roorkee, 247 667, India
Funding Details: This work has been partially supported by the UKIERI major award on “Application specific microstructured optical fibers.”
Corresponding Author: Hooda, B.; Department of Physics, Central University of HaryanaIndia; email:
Appears in Collections:Journal Publications [PH]

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