Testing of active heat sink for advanced high-power laser diodes

John Vetrovec; Drew A. Copeland; Ryan Feeler; Jeremy Junghans

doi:10.1117/12.875979

21 February 2011 Testing of active heat sink for advanced high-power laser diodes

John Vetrovec, Drew A. Copeland, Ryan Feeler, Jeremy Junghans

Proceedings Volume 7918, High-Power Diode Laser Technology and Applications IX; 79180G (2011) https://doi.org/10.1117/12.875979
Event: SPIE LASE, 2011, San Francisco, California, United States

Abstract

We report on the development of a novel active heat sink for high-power laser diodes offering unparalleled capacity in high-heat flux handling and temperature control. The heat sink employs convective heat transfer by a liquid metal flowing at high speed inside a miniature sealed flow loop. Liquid metal flow in the loop is maintained electromagnetically without any moving parts. Thermal conductance of the heat sink is electronically adjustable, allowing for precise control of diode temperature and the laser light wavelength. This paper presents the principles and challenges of liquid metal cooling, and data from testing at high heat flux and high heat loads.

Citation Download Citation

John Vetrovec, Drew A. Copeland, Ryan Feeler, and Jeremy Junghans "Testing of active heat sink for advanced high-power laser diodes", Proc. SPIE 7918, High-Power Diode Laser Technology and Applications IX, 79180G (21 February 2011); https://doi.org/10.1117/12.875979

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