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A self-starting passively mode-locked fibre ring laser for distributed sensing

A self-starting passively mode-locked fibre ring laser for distributed sensing
A self-starting passively mode-locked fibre ring laser for distributed sensing
A twelve hundred metre long, passively mode-locked, fibre ring laser has been constructed using polarisation preserving fibre to ensure operational stability. A short length of lo-bi spun fibre has been included to exploit non-linear polarisation evolution (NLPE) as the mechanism for mode-locking the fibre laser. Pulses with durations in the range of 1 to 10ns with intensities of a few Watts centred around the 1.535µm wavelength were achieved. The circulating pulse within the laser cavity generates both Rayleigh and Raman scattered light. The former may be used to measure losses within the cavity, the latter permits the distributed temperature measurements of the fibre forming the cavity.
Sommer, J.M.
925a56e4-6da9-48fb-ab00-2d7804c00abf
Wait, P.C.
5cb979e7-285b-48a0-8b5f-0761ef2da484
Newson, T.P.
6735857e-d947-45ec-8163-54ebb25daad7
Sommer, J.M.
925a56e4-6da9-48fb-ab00-2d7804c00abf
Wait, P.C.
5cb979e7-285b-48a0-8b5f-0761ef2da484
Newson, T.P.
6735857e-d947-45ec-8163-54ebb25daad7

Sommer, J.M., Wait, P.C. and Newson, T.P. (1994) A self-starting passively mode-locked fibre ring laser for distributed sensing. 10th Optical Fibre Sensors Conference, Glasgow, United Kingdom. 11 - 13 Oct 1994.

Record type: Conference or Workshop Item (Paper)

Abstract

A twelve hundred metre long, passively mode-locked, fibre ring laser has been constructed using polarisation preserving fibre to ensure operational stability. A short length of lo-bi spun fibre has been included to exploit non-linear polarisation evolution (NLPE) as the mechanism for mode-locking the fibre laser. Pulses with durations in the range of 1 to 10ns with intensities of a few Watts centred around the 1.535µm wavelength were achieved. The circulating pulse within the laser cavity generates both Rayleigh and Raman scattered light. The former may be used to measure losses within the cavity, the latter permits the distributed temperature measurements of the fibre forming the cavity.

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More information

Published date: 1994
Venue - Dates: 10th Optical Fibre Sensors Conference, Glasgow, United Kingdom, 1994-10-11 - 1994-10-13

Identifiers

Local EPrints ID: 77113
URI: http://eprints.soton.ac.uk/id/eprint/77113
PURE UUID: 718a6343-75bb-4218-9ca5-698e09535dda

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Date deposited: 11 Mar 2010
Last modified: 13 Mar 2024 23:44

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Contributors

Author: J.M. Sommer
Author: P.C. Wait
Author: T.P. Newson

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