Photorefractive techniques for diode laser beam combination


MacCormack, S. and Eason, R.W. (1992) Photorefractive techniques for diode laser beam combination Journal of Nonlinear Optical Physics and Materials, 1, (2), pp. 431-455. (doi:10.1142/S0218199192000212).

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Description/Abstract

Techniques for high-power laser array beam combination processes involving photorefractive materials are reviewed. Details of an all semiconductor laser scheme for the amplification and subsequent photorefractive beam clean-up of a diffraction limited single-mode laser output is presented. Powers in excess of 100 mW ( > 220 mW accounting for Fresnel losses) are obtained in a diffraction limited signal beam, corresponding to an array to diffraction limited beam transfer efficiency of 33%. Details of the reflection geometry phase conjugate master oscillator-power amplifier scheme which offers the possibility of power scaling between a number of high-power semiconductor laser amplifiers are presented. Using this technique, a 13-dB amplification of a diffraction limited signal beam is obtained using a commercially available, 10-stripe gain-guided device with no special coatings.

Item Type: Article
Digital Object Identifier (DOI): doi:10.1142/S0218199192000212
ISSNs: 0218-8635 (print)
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ePrint ID: 78513
Date :
Date Event
1992Published
Date Deposited: 11 Mar 2010
Last Modified: 18 Apr 2017 20:21
Further Information:Google Scholar
URI: http://eprints.soton.ac.uk/id/eprint/78513

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