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Thermal characterization of diamond-pressure-bond heat sinking for optically pumped mid-infrared lasers

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9 Author(s)
Bewley, W.W. ; Naval Res. Lab., Washington, DC, USA ; Felix, C.L. ; Aifer, E.H. ; Stokes, D.W.
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The heat-sinking properties of optically pumped semiconductor lasers mounted by the diamond-pressure-bonding (DPB) technique have been evaluated quantitatively. This method combines epi-side-down mounting with minimal processing and top optical access via pumping through the diamond. By correlating the pump-intensity variation of the emission wavelength with its temperature variation, specific thermal resistances have been determined for DPB-mounted type-II “W” lasers operating in the mid-infrared. Values <2.0 K·cm2/kW were obtained for all temperatures in the range 140-220 K

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Quantum Electronics, IEEE Journal of  (Volume:35 ,  Issue: 11 )