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Low-temperature sensitivity periodically tapered photonic crystal-fiber-based refractometer

Low-temperature sensitivity periodically tapered photonic crystal-fiber-based refractometer
Low-temperature sensitivity periodically tapered photonic crystal-fiber-based refractometer
In this Letter, an all-fiber refractometer with a simple configuration of periodical tapers on a photonic crystal fiber (PCF) is proposed and investigated experimentally. The proposed fiber refractive index (RI) sensor consists of a PCF sandwiched between two standard single-mode fibers, with tapers periodically fabricated along the PCF using a CO2 laser beam focused by a ZnSe cylindrical lens. The proposed fiber sensor can be used for RI sensing by measuring the wavelength shift of the multimode interference dip over the transmission spectrum. An average sensitivity of 222 nm/MRIU has been experimentally achieved over a RI range from 1.33 to 1.38. The proposed refractometer is also significantly less sensitive to temperature, and an experimental demonstration of this reduced sensitivity is presented. The proposed RI sensor benefits from simplicity and low-cost and achieves a competitive sensitivity compared with other existing fiber-optic sensors.
0146-9592
3795-3798
Wang, Pengfei
a1ba240f-d4f0-4150-bcd8-cb418e841dcb
Bo, Lin
cffc25e8-2256-4f08-ada8-a1386c326810
Guan, Chunying
a2d5b5f2-bd7c-4968-8f70-8c0ffdb09948
Semenova, Yuliya
6e64157c-40b6-4eb5-938c-ae2dd348f652
Wu, Qiang
fad3844e-9eba-496c-876d-3bbc9ee4a689
Brambilla, Gilberto
815d9712-62c7-47d1-8860-9451a363a6c8
Farrell, Gerald
6c4b8f27-d88c-41a2-87ff-f2466225798f
Wang, Pengfei
a1ba240f-d4f0-4150-bcd8-cb418e841dcb
Bo, Lin
cffc25e8-2256-4f08-ada8-a1386c326810
Guan, Chunying
a2d5b5f2-bd7c-4968-8f70-8c0ffdb09948
Semenova, Yuliya
6e64157c-40b6-4eb5-938c-ae2dd348f652
Wu, Qiang
fad3844e-9eba-496c-876d-3bbc9ee4a689
Brambilla, Gilberto
815d9712-62c7-47d1-8860-9451a363a6c8
Farrell, Gerald
6c4b8f27-d88c-41a2-87ff-f2466225798f

Wang, Pengfei, Bo, Lin, Guan, Chunying, Semenova, Yuliya, Wu, Qiang, Brambilla, Gilberto and Farrell, Gerald (2013) Low-temperature sensitivity periodically tapered photonic crystal-fiber-based refractometer. Optics Letters, 38 (19), 3795-3798. (doi:10.1364/OL.38.003795).

Record type: Article

Abstract

In this Letter, an all-fiber refractometer with a simple configuration of periodical tapers on a photonic crystal fiber (PCF) is proposed and investigated experimentally. The proposed fiber refractive index (RI) sensor consists of a PCF sandwiched between two standard single-mode fibers, with tapers periodically fabricated along the PCF using a CO2 laser beam focused by a ZnSe cylindrical lens. The proposed fiber sensor can be used for RI sensing by measuring the wavelength shift of the multimode interference dip over the transmission spectrum. An average sensitivity of 222 nm/MRIU has been experimentally achieved over a RI range from 1.33 to 1.38. The proposed refractometer is also significantly less sensitive to temperature, and an experimental demonstration of this reduced sensitivity is presented. The proposed RI sensor benefits from simplicity and low-cost and achieves a competitive sensitivity compared with other existing fiber-optic sensors.

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More information

Published date: 1 October 2013
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 359031
URI: http://eprints.soton.ac.uk/id/eprint/359031
ISSN: 0146-9592
PURE UUID: 26cd7cc1-62f0-4874-a25b-8faecf4f8ed1
ORCID for Gilberto Brambilla: ORCID iD orcid.org/0000-0002-5730-0499

Catalogue record

Date deposited: 21 Oct 2013 08:52
Last modified: 02 Apr 2022 01:38

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Contributors

Author: Pengfei Wang
Author: Lin Bo
Author: Chunying Guan
Author: Yuliya Semenova
Author: Qiang Wu
Author: Gerald Farrell

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