Improved cooling for high-power laser diodes

John Vetrovec

doi:10.1117/12.762512

20 February 2008 Improved cooling for high-power laser diodes

John Vetrovec

Proceedings Volume 6876, High-Power Diode Laser Technology and Applications VI; 687603 (2008) https://doi.org/10.1117/12.762512
Event: Lasers and Applications in Science and Engineering, 2008, San Jose, California, United States

Abstract

We report a novel coolant recirculation loop for high-power laser diodes which allows operating diode bar heat exchangers at their design coolant Reynolds number while consuming as little as 20% of their nominal coolant supply inflow. While operating in a single-phase regime, the new concept uses low coolant flow-rates comparable to proposed evaporative coolers. Unlike evaporative coolers, the new concept is compatible with many standard microchannel or impingement-type heat exchanger designs. The theory, design, and applications are presented.

Citation Download Citation

John Vetrovec "Improved cooling for high-power laser diodes", Proc. SPIE 6876, High-Power Diode Laser Technology and Applications VI, 687603 (20 February 2008); https://doi.org/10.1117/12.762512

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