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Birefringence treatment of non-ideal optical microfibre coils for continuous Faraday rotation

Birefringence treatment of non-ideal optical microfibre coils for continuous Faraday rotation
Birefringence treatment of non-ideal optical microfibre coils for continuous Faraday rotation
A flexible technique to periodically perturb the evolution of differential phase in birefringent optical microfiber is proposed. This conceptual demonstration offers a simple yet effective solution to rectify non-ideal microfiber coil sensor heads for high-performance current sensing.

Introduction:
The rise of optical microfiber technology [1] has opened up a new lineage of current sensing. Optical current sensors employing optical microfibers (OM) based on the Faraday Effect have shown their potential for ultra-fast current detection in ultra-small geometries [2–4]. However, as with conventional current sensors, the problem of birefringence [5,6] still persists. Spun optical microfiber was previously proposed and demonstrated [7]. It offered improvements in the current responsivity at the expense of increased fabrication time and resources. In this Letter, we propose a post-fabrication technique to achieve the same goal, but with considerably lower fabrication complexity.
0013-5194
714-715
Chen, G.Y.
b766d3f7-a6dc-4c15-8f00-17ad044348c1
Brambilla, G.
815d9712-62c7-47d1-8860-9451a363a6c8
Newson, T.P.
6735857e-d947-45ec-8163-54ebb25daad7
Chen, G.Y.
b766d3f7-a6dc-4c15-8f00-17ad044348c1
Brambilla, G.
815d9712-62c7-47d1-8860-9451a363a6c8
Newson, T.P.
6735857e-d947-45ec-8163-54ebb25daad7

Chen, G.Y., Brambilla, G. and Newson, T.P. (2013) Birefringence treatment of non-ideal optical microfibre coils for continuous Faraday rotation. Electronics Letters, 49 (11), 714-715. (doi:10.1049/el.2013.0651).

Record type: Article

Abstract

A flexible technique to periodically perturb the evolution of differential phase in birefringent optical microfiber is proposed. This conceptual demonstration offers a simple yet effective solution to rectify non-ideal microfiber coil sensor heads for high-performance current sensing.

Introduction:
The rise of optical microfiber technology [1] has opened up a new lineage of current sensing. Optical current sensors employing optical microfibers (OM) based on the Faraday Effect have shown their potential for ultra-fast current detection in ultra-small geometries [2–4]. However, as with conventional current sensors, the problem of birefringence [5,6] still persists. Spun optical microfiber was previously proposed and demonstrated [7]. It offered improvements in the current responsivity at the expense of increased fabrication time and resources. In this Letter, we propose a post-fabrication technique to achieve the same goal, but with considerably lower fabrication complexity.

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Published date: 23 May 2013
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 356025
URI: https://eprints.soton.ac.uk/id/eprint/356025
ISSN: 0013-5194
PURE UUID: 3a9f6d8e-8321-4c39-8ea4-1fcd1dd64c8a

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Date deposited: 10 Sep 2013 10:21
Last modified: 27 Sep 2017 16:31

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