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A photonic crystal fiber tip refractometer based on multimode interference

A photonic crystal fiber tip refractometer based on multimode interference
A photonic crystal fiber tip refractometer based on multimode interference
A compact singlemode-photonic crystal fibre-singlemode fibre tip (SPST) refractive index sensor is demonstrated in this paper. A CO2 laser cleaving is exploited to provide a clean-cut fibre tip which is then coated by a layer of gold to increase reflection. An average sensitivity of 39.1 nm/RIU and a resolvable index change of 2.56×10-4 are obtained experimentally with a ~3.2 µm diameter SPST. Because of its compactness, ease of fabrication, linear response, high sensitivity, easy connectivity to other fibreized optical components and low cost, this refractometer could find various applications in chemical and biological sensing.
0277-786X
Wang, Pengfei
a1ba240f-d4f0-4150-bcd8-cb418e841dcb
Ding, Ming
086b25a3-e5c3-4501-a90d-43d734e19344
Bo, Lin
cffc25e8-2256-4f08-ada8-a1386c326810
Semenova, Yuliya
6e64157c-40b6-4eb5-938c-ae2dd348f652
Brambilla, Gilberto
815d9712-62c7-47d1-8860-9451a363a6c8
Farrell, Gerald
6c4b8f27-d88c-41a2-87ff-f2466225798f
Wang, Pengfei
a1ba240f-d4f0-4150-bcd8-cb418e841dcb
Ding, Ming
086b25a3-e5c3-4501-a90d-43d734e19344
Bo, Lin
cffc25e8-2256-4f08-ada8-a1386c326810
Semenova, Yuliya
6e64157c-40b6-4eb5-938c-ae2dd348f652
Brambilla, Gilberto
815d9712-62c7-47d1-8860-9451a363a6c8
Farrell, Gerald
6c4b8f27-d88c-41a2-87ff-f2466225798f

Wang, Pengfei, Ding, Ming, Bo, Lin, Semenova, Yuliya, Brambilla, Gilberto and Farrell, Gerald (2014) A photonic crystal fiber tip refractometer based on multimode interference. Proceedings of SPIE, 9157. (doi:10.1117/12.2059596).

Record type: Article

Abstract

A compact singlemode-photonic crystal fibre-singlemode fibre tip (SPST) refractive index sensor is demonstrated in this paper. A CO2 laser cleaving is exploited to provide a clean-cut fibre tip which is then coated by a layer of gold to increase reflection. An average sensitivity of 39.1 nm/RIU and a resolvable index change of 2.56×10-4 are obtained experimentally with a ~3.2 µm diameter SPST. Because of its compactness, ease of fabrication, linear response, high sensitivity, easy connectivity to other fibreized optical components and low cost, this refractometer could find various applications in chemical and biological sensing.

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More information

Published date: 2 June 2014
Venue - Dates: 23rd International Conference on Optical Fibre Sensors: SPIE 9157, , Santander, Spain, 2014-06-02 - 2014-06-06

Identifiers

Local EPrints ID: 442688
URI: http://eprints.soton.ac.uk/id/eprint/442688
ISSN: 0277-786X
PURE UUID: 56334238-86f0-425c-93ca-d010e3bbf1a1
ORCID for Gilberto Brambilla: ORCID iD orcid.org/0000-0002-5730-0499

Catalogue record

Date deposited: 23 Jul 2020 16:31
Last modified: 02 Apr 2022 01:38

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Contributors

Author: Pengfei Wang
Author: Ming Ding
Author: Lin Bo
Author: Yuliya Semenova
Author: Gerald Farrell

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