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Proceedings Paper

Double-clad planar waveguide Nd:YAG laser
Author(s): Michal Jelínek; Václav Kubecek; Zdenek Burian; Pavel Hríbek
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Paper Abstract

Operation of a diode-end-pumped double-clad planar waveguide Nd:YAG laser is reported. The waveguide structure consisted of 220 μm thick active Nd:YAG layer sandwiched between two 390 μm undoped YAG layers. The outer cladding was formed by two 200 μm sapphire layers. Dimensions of the whole structure are 12 × 6 × 1.4 mm3. With pumping by 2 W laser 808 nm diode, the laser operation was achieved at 1.06 μm with several resonator configurations: plan parallel resonator with external mirrors, self-imaging resonator, and resonator with mirrors coated on waveguide structure faces. In multimode operation the slope efficiency was 58%. The maximal output power of 640 mW was achieved. In single mode operation with self-imaging resonator the slope efficiency of 34% was achieved. With mirrors coated directly on waveguide structure faces the slope efficiency of 49% in single transversal mode was obtained.

Paper Details

Date Published: 18 November 2008
PDF: 6 pages
Proc. SPIE 7138, Photonics, Devices, and Systems IV, 71381O (18 November 2008); doi: 10.1117/12.818046
Show Author Affiliations
Michal Jelínek, Czech Technical Univ. in Prague (Czech Republic)
Václav Kubecek, Czech Technical Univ. in Prague (Czech Republic)
Zdenek Burian, Czech Technical Univ. in Prague (Czech Republic)
Pavel Hríbek, Univ. of South Bohemia in Ceske Budejovice (Czech Republic)

Published in SPIE Proceedings Vol. 7138:
Photonics, Devices, and Systems IV
Pavel Tománek; Dagmar Senderáková; Miroslav Hrabovský, Editor(s)

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