Self-starting passively mode-locked fibre ring laser for distributed sensing

J.-M. Sommer; Peter C. Waite; Trevor P. Newson

doi:10.1117/12.185019

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14 September 1994 Self-starting passively mode-locked fibre ring laser for distributed sensing

J.-M. Sommer, Peter C. Waite, Trevor P. Newson

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Proceedings Volume 2360, Tenth International Conference on Optical Fibre Sensors; (1994) https://doi.org/10.1117/12.185019
Event: 10th Optical Fibre Sensors Conference, 1994, Glasgow, United Kingdom

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 1.535? 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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J.-M. Sommer, Peter C. Waite, and Trevor P. Newson "Self-starting passively mode-locked fibre ring laser for distributed sensing", Proc. SPIE 2360, Tenth International Conference on Optical Fibre Sensors, (14 September 1994); https://doi.org/10.1117/12.185019

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