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30 May 2022 High power diffraction-limited tapered diode lasers
Michelle Labrecque, Jenna Campbell, Kevin McClune, Fedor Talantov, Elliot Burke, Daniel Renner, Milan Mashanovitch, Leif Johansson, Paul Leisher
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Proceedings Volume PC12092, Laser Technology for Defense and Security XVII; PC1209206 (2022) https://doi.org/10.1117/12.2622976
Event: SPIE Defense + Commercial Sensing, 2022, Orlando, Florida, United States
Abstract
Broad area diode lasers operate with high power and efficiency but suffer from poor beam quality. Diffraction-limited lasers with equivalent power offer a disruptive alternative for applications ranging from fiber laser pumping to automotive LIDAR. We report >9 W continuous output power with 50% EO from tapered diode lasers at 885 and 980 nm, and >3 W power with 25% EO at 1550 nm. We show for the first time that beam quality degradation with increasing injection is completely mitigated and maintain a slow-axis M^2 of 1.3 from threshold to rollover. These devices achieve an order-of-magnitude increase in brightness over commercially available high power diode lasers.
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Michelle Labrecque, Jenna Campbell, Kevin McClune, Fedor Talantov, Elliot Burke, Daniel Renner, Milan Mashanovitch, Leif Johansson, and Paul Leisher "High power diffraction-limited tapered diode lasers", Proc. SPIE PC12092, Laser Technology for Defense and Security XVII, PC1209206 (30 May 2022); https://doi.org/10.1117/12.2622976
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KEYWORDS
High power lasers
Semiconductor lasers
Fiber lasers
Broad area laser diodes
High power diode lasers
Laser applications
LIDAR
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