Eye-safe passively q-switched lasers at 1.3µm with >1W average power and nsec pulses

Thomas J. Kane; John L. Nightingale

doi:10.1117/12.2663200

15 June 2023 Eye-safe passively q-switched lasers at 1.3µm with >1W average power and nsec pulses

Thomas J. Kane, John L. Nightingale

Proceedings Volume 12515, Laser Technology for Defense and Security XVIII; 1251509 (2023) https://doi.org/10.1117/12.2663200
Event: SPIE Defense + Commercial Sensing, 2023, Orlando, Florida, United States

Abstract

Diode-pumped, passively-q-switched neodymium lasers at wavelengths near 1.3 μm based on the saturable absorber Vanadium:YAG have favorable properties as sources for longer-range, >300 m, 3D-imaging systems which are difficult to implement with semiconductor lasers. This wavelength enables eye safety at exposures above what is permitted at 1.5 μm. The lasers are simple, comprising two millimeter-scale crystals with all plano surfaces. We report a Nd:YVO₄ laser with a pulse repetition rate of approximately 500 kHz and a Nd:YAG laser with a pulse energy of 40 μJ, both with pulse durations below 2 nsec.

Conference Presentation

Citation Download Citation

Thomas J. Kane and John L. Nightingale "Eye-safe passively q-switched lasers at 1.3µm with >1W average power and nsec pulses", Proc. SPIE 12515, Laser Technology for Defense and Security XVIII, 1251509 (15 June 2023); https://doi.org/10.1117/12.2663200

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