This article is cited in 1 paper

Lasers

Efficient single-mode (TEM₀₀) Nd : YVO₄ laser with longitudinal 808-nm diode pumping

V. I. Donin, D. V. Yakovin, M. D. Yakovin

Institute of Automation and Electrometry, Siberian Branch of Russian Academy of Sciences, Novosibirsk

Abstract: A single-mode Nd : YVO₄ laser with unidirectional longitudinal pumping by laser diodes with λ = 808 nm and a power of 40 W is studied. In the TEM₀₀ mode, the output laser power is 24 W with the optical efficiency η_opt = 57.1 % (slope efficiency 63.3 %), which, as far as we know, is the best result for Nd³⁺ : YVO₄ lasers with longitudinal pumping at λ = 808 nm from one face of the active crystal. Estimates of thermal effects show that, using a Nd : YVO₄ crystal (length 20 mm, diameter 3 mm, dopant concentration 0.27 at%) with two undoped ends and bidirectional diode pumping with a total power of 170 W, one can obtain an output power of ~100 W in the TEM₀₀ mode from one active element.

Keywords: diode-pumped laser, YVO₄ / Nd :YVO₄ crystal, longitudinal pumping, thermal effects, high efficiency.

PACS: 42.55.Rz, 42.55.Xi, 42.60.Lh

Received: 20.03.2013
Revised: 07.05.2013

 English version: Quantum Electronics, 2013, 43:10, 903–906

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