Optimization of diode array side-pumped passively Q-switched Yb:Er:glass laser

Van Tuan Vu; Tuan Anh Nguyen; Van Manh Nguyen; Bao Dong To

doi:10.1117/12.2686326

27 November 2023 Optimization of diode array side-pumped passively Q-switched Yb:Er:glass laser

Van Tuan Vu, Tuan Anh Nguyen, Van Manh Nguyen, Bao Dong To

Proceedings Volume 12760, Advanced Lasers, High-Power Lasers, and Applications XIV; 127600A (2023) https://doi.org/10.1117/12.2686326
Event: SPIE/COS Photonics Asia, 2023, Beijing, China

Abstract

We fabricated a diode array side-pump, passively Q-switched laser for our laser rangefinder system. The 25 mm linear cavity laser was designed with a rectangular Yb:Er:glass rod as the active element, and a Co:spinel plate as the saturable absorber. The active element was pumped with two quasi-CW 940-nm diode arrays. The pump-to-laser beam overlap was optimized by attaching the Fast Axis Collimator (FAC) lens on the diode arrays. The design for heat transfer from rod surface to the ambient medium is also considered in this report. Our laser operates stably at the wavelength of 1535 nm. The laser pulse energy and pulse width are 1.5 mJ and 4.6 ns, respectively. The repetition rates are tunable from 1 Hz to 10 Hz.

Citation Download Citation

Van Tuan Vu, Tuan Anh Nguyen, Van Manh Nguyen, and Bao Dong To "Optimization of diode array side-pumped passively Q-switched Yb:Er:glass laser", Proc. SPIE 12760, Advanced Lasers, High-Power Lasers, and Applications XIV, 127600A (27 November 2023); https://doi.org/10.1117/12.2686326

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