7 March 2014 Dense array slab-coupled optical waveguide laser capable of 500W/bar
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Abstract
Dense array slab-coupled optical waveguide lasers (DASCOWLs) consist of several hundred single-mode SCOWL lasers on a monolithic bar. Near diffraction-limited output of the SCOWLs is preserved with spacing down to 40μm. Greater than 200W CW operation of a 4% FF, 100-element, 100μm-pitch, centimeter wide DASCOWL bar has been demonstrated, corresponding to <2W/emitter in array format. We have also demonstrated near 500W continuous wave (CW) operation from a 10% fill factor (FF) 1-cm wide, 1cm long DASCOWL bar which contains 250 emitters, with a 40μm pitch. The goal of 2W/emitter, 500W/bar represents a 5X increase above the conventional 10-emitter, 10% FF broad area laser diode bar that operates at 10W/100μm-emitter. Some of the reported DASCOWL performance benefits from SRL’s low thermal resistance EPIC heat sinks.
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Mehmet Dogan, Mehmet Dogan, Gary M. Smith, Gary M. Smith, Leo J. Missaggia, Leo J. Missaggia, Michael K. Connors, Michael K. Connors, Joseph P. Donnelly, Joseph P. Donnelly, George W. Turner, George W. Turner, Jonah H. Jacob, Jonah H. Jacob, } "Dense array slab-coupled optical waveguide laser capable of 500W/bar", Proc. SPIE 8965, High-Power Diode Laser Technology and Applications XII, 89650L (7 March 2014); doi: 10.1117/12.2039566; https://doi.org/10.1117/12.2039566
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