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320mW Nd3+-doped single-mode fibre superfluorescent source

Minelly, J.D. and Morkel, P.R. (1993) 320mW Nd3+-doped single-mode fibre superfluorescent source At CLEO '93: Conference on Lasers & Electro-Optics, United States. 02 - 07 May 1993.

Record type: Conference or Workshop Item (Paper)

Abstract

Superfluorescent, SF single-mode Nd3+ doped fiber sources are of interest for us in a number of applications where a high brightness source of low temporal coherence is required. These include sensors such a fiber gyroscopes and medical diagnostic Such sources are similar to fiber lasers, but suppression of round-trip feedback prevent. the formation of discrete longitudinal cavity modes. The amplified spontaneous emission thus maintains a continuous spectrum. By pumping special doubleclad fibers with multistripe diode arrays, powers of up to 80 mW have been achieved. However, the output power is limited by a tendency to lase around line center when the product of the fiber gain and the effective reflection induced by Rayleigh backscattering exceeds unity. In this paper we report a scheme whereby the limitation is overcome by injecting light from a relatively low-power fiber SF seed source into a high-gain fiber amplifier. Using this technique we have demonstrated output power approximately four times that previously reported.

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More information

Published date: 1993
Venue - Dates: CLEO '93: Conference on Lasers & Electro-Optics, United States, 1993-05-02 - 1993-05-07

Identifiers

Local EPrints ID: 77271
URI: http://eprints.soton.ac.uk/id/eprint/77271
PURE UUID: 0b97c612-f8ef-4783-aa99-cb7c5556f2f4

Catalogue record

Date deposited: 11 Mar 2010
Last modified: 18 Jul 2017 23:33

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Contributors

Author: J.D. Minelly
Author: P.R. Morkel

University divisions

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