Silicon monolithic microchannel-cooled laser diode array

doi:10.1063/1.126860

Silicon monolithic microchannel-cooled laser diode array

2000-07-03

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DOI：10.1063/1.126860

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A monolithic microchannel-cooled laser diode array is demonstrated that allows multiple diode-bar mounting with negligible thermal cross talk. The heat sink comprises two main components: a wet-etched Si layer that is anodically bonded to a machined glass block. The continuous wave (cw) thermal resistance of the 10 bar diode array is 0.032 degrees C/W, which matches the performance of discrete microchannel-cooled arrays. Up to 1.5 kW/cm(2) is achieved cw at an emission wavelength of similar to 808 nm. Collimation of a diode array using a monolithic lens frame produced a 7.5 mrad divergence angle by a single active alignment. This diode array offers high average power/brightness in a simple, rugged, scalable architecture that is suitable for large two-dimensional areas. (C) 2000 American Institute of Physics. [S0003-6951(00)00827-5].

Silicon monolithic microchannel-cooled laser diode array

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