A novel method for electrically isolated impingement cooling of high-power diode laser bars

Francisco Villarreal; Bien Chann; Fernando Monjardin; Christopher Halle; Michael Denninger; Myrna Reyes; Shinya Domoto; Bryan Lochman

doi:10.1117/12.2611234

1 April 2022 A novel method for electrically isolated impingement cooling of high-power diode laser bars

Francisco Villarreal, Bien Chann, Fernando Monjardin, Christopher Halle, Michael Denninger, Myrna Reyes, Shinya Domoto, Bryan Lochman

Author Affiliations +

Proceedings Volume PC11982, Components and Packaging for Laser Systems VIII; PC1198203 (2022) https://doi.org/10.1117/12.2611234
Event: SPIE LASE, 2022, San Francisco, California, United States

Abstract

High Power Diode Laser Bars serve as the foundation for many high-power laser systems used in manufacturing and research. Efficient heat removal is essential for reducing cost per watt by increasing available output power or extending the effective lifetime of these devices. In this paper we will introduce a novel method for electrically isolated water impingement cooling of high-power diode laser bars operating in the 975nm region. We will present results from 58 emitter diode laser bars operating in the 975nm region with CW output power levels exceeding 500W and a thermal resistivity of less than 0.12 K/W.

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Citation Download Citation

Francisco Villarreal, Bien Chann, Fernando Monjardin, Christopher Halle, Michael Denninger, Myrna Reyes, Shinya Domoto, and Bryan Lochman "A novel method for electrically isolated impingement cooling of high-power diode laser bars", Proc. SPIE PC11982, Components and Packaging for Laser Systems VIII, PC1198203 (1 April 2022); https://doi.org/10.1117/12.2611234

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