Compact-lightweight fiber-coupled diode pump source using a bar approach

Jenna Bergevin; Michael Oswald; Connor Magness; Christian Hemala; Carlos Soto; Xochitl Cooper; Mark Crowley; Clifford Headley; Steve Patterson; Prabhu Thiagarajan

doi:10.1117/12.3000081

12 March 2024 Compact-lightweight fiber-coupled diode pump source using a bar approach

Jenna Bergevin, Michael Oswald, Connor Magness, Christian Hemala, Carlos Soto, Xochitl Cooper, Mark Crowley, Clifford Headley, Steve Patterson, Prabhu Thiagarajan

Author Affiliations +

Proceedings Volume 12867, High-Power Diode Laser Technology XXII; 1286712 (2024) https://doi.org/10.1117/12.3000081
Event: SPIE LASE, 2024, San Francisco, California, United States

Abstract

The size and weight of a fiber laser source are important metrics. The diodes used to pump this device and the cooling associated with it are the largest contributors to the size and weight of the fiber laser source. A bar-based approach has the potential for a lighter more compact diode since the source heat removal is done from a more compact heat sink. In this paper we describe results obtained from the development of a bar-based fiber coupled diode source, resulting in over 500 W of power out of the fiber, with 49% efficiency, wavelength locked at 976 nm, from a 231 μm core 0.22 NA fiber. The resulting volume metric is 0.25 cm³ /W and the weight metric is 0.36 g/W, which includes the diode heatsink.

Conference Presentation

Citation Download Citation

Jenna Bergevin, Michael Oswald, Connor Magness, Christian Hemala, Carlos Soto, Xochitl Cooper, Mark Crowley, Clifford Headley, Steve Patterson, and Prabhu Thiagarajan "Compact-lightweight fiber-coupled diode pump source using a bar approach", Proc. SPIE 12867, High-Power Diode Laser Technology XXII, 1286712 (12 March 2024); https://doi.org/10.1117/12.3000081

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