Abstract
Diode-pumped solid-state lasers operating in the eye-safe spectral region of 1.8-2.1 μm and based on Tm3+-doped solid-state media have applications in a number of important areas because of the strong absorption by water and water vapor in this wavelength region. In comparison with pure Tm3+ doped media, which are usually pumped by laser diodes emitting at 790 to 800 nm, Yb-Tm co-doped crystals possess a broad absorption band convenient for pumping within the 960 to 980 nm wavelength range, where powerful commercial laser diodes are very reliable and easily available.
© 2002 Optical Society of America
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