Abstract
Q switching of a diode-pumped Nd3+:KGd(WO4)2 laser at 1.35 μm by use of cobalt-doped magnesium- and zinc-aluminosilicate glass ceramics as saturable absorbers is demonstrated. Q-switching efficiency up to 40% has been obtained. Ground-state absorption cross sections for Co2+ ions at the wavelengths of 1.35 and 1.54 μm are estimated to be (3.5–4.0) × 10-19 cm2. Bleaching relaxation times under the excitation of the 4A2 → 4T1(4F) transition of tetrahedrally coordinated Co2+ ions are of 280 ± 50 ns and 700 ± 80 ns for magnesium- and zinc-aluminosilicate glass ceramics, respectively.
© 2004 Optical Society of America
Full Article | PDF ArticleMore Like This
Yuri V. Volk, Alexander M. Malyarevich, Konstantin V. Yumashev, Olga S. Dymshits, Alexander V. Shashkin, Alexander A. Zhilin, Uk Kang, and Kyeong-Hee Lee
Appl. Opt. 43(32) 6011-6015 (2004)
Alexander M. Malyarevich, Igor A. Denisov, Konstantin V. Yumashev, Olga S. Dymshits, Alexander A. Zhilin, and Uk Kang
Appl. Opt. 40(24) 4322-4325 (2001)
A. M. Malyarevich, I. A. Denisov, K. V. Yumashev, O. S. Dymshits, and A. A. Zhilin
J. Opt. Soc. Am. B 19(8) 1815-1821 (2002)