Spectral beam combining of a 980 nm tapered diode laser bar

Deepak Vijayakumar, Ole Bjarlin Jensen, Ralf Ostendorf, Thomas Westphalen, Birgitte Thestrup Nielsen

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We demonstrate spectral beam combining of a 980 nm tapered diode laser bar. The combined beam from 12 tapered emitters on the bar yielded an output power of 9.3 W at 30 A of operating current. An M2 value of 5.3 has been achieved along the slow axis. This value is close to that of a free running single tapered emitter on the bar at the same current level. The overall spectral beam combining efficiency was measured to be 63%.
Original languageEnglish
JournalOptics Express
Issue number2
Pages (from-to)893-898
Publication statusPublished - 2010

Bibliographical note

This paper was published in Optics Express and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/oe/abstract.cfm?uri=oe-18-2-893. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.


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