A high power eye-safe Er3+:YVO4 laser diode-pumped at 976 nm and emitting at 1603 nm

G. A. Newburgh; M. Dubinskii

doi:10.1117/12.2214559

24 February 2016 High power eye-safe Er³⁺:YVO₄ laser diode-pumped at 976 nm and emitting at 1603 nm

G. A. Newburgh, M. Dubinskii

Proceedings Volume 9744, Optical Components and Materials XIII; 97440T (2016) https://doi.org/10.1117/12.2214559
Event: SPIE OPTO, 2016, San Francisco, California, United States

Abstract

We report on the performance of an eye-safe laser based on a Er:YVO₄ single crystal, diode-pumped at 976 nm (⁴I_15/2→⁴I_11/2 transition) and operating at 1603 nm (⁴I_13/2→⁴I_15/2 transition) with good beam quality. A 10 mm long Er^3+:YVO₄ slab, cut with its c-axis perpendicular to the laser cavity axis, was pumped in σ-polarization and lased in π-polarization. The laser operated in a quasi-continuous wave (Q-CW) regime with nearly 9 W output power, and with a slope efficiency of about 39% with respect to absorbed power. This is believed to be the highest efficiency and highest power achieved from an Er³⁺:YVO₄ laser pumped in the 970-980 nm absorption band.

Citation Download Citation

G. A. Newburgh and M. Dubinskii "High power eye-safe Er³⁺:YVO₄ laser diode-pumped at 976 nm and emitting at 1603 nm", Proc. SPIE 9744, Optical Components and Materials XIII, 97440T (24 February 2016); https://doi.org/10.1117/12.2214559

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