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), 431-455. (doi:10.1142/S0218199192000212 ).
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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.
|Subjects:||Q Science > QC Physics
T Technology > TK Electrical engineering. Electronics Nuclear engineering
|Divisions:||University Structure - Pre August 2011 > Optoelectronics Research Centre
|Date Deposited:||11 Mar 2010|
|Last Modified:||02 Mar 2012 13:02|
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
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