Abstract

We have observed oscillation in a Tm³⁺ and Ho³⁺ codoped silica fiber from the ⁵I₇ → ⁵I₈ transition of Ho³⁺ in the 2-μm region, by pumping the fiber laser into a Tm³⁺ absorption between 800 and 830 nm. By a change in the cavity length, the laser was tunable between 2.037 and 2.096 μm. When the laser was pumped with a Ti:sapphire laser at 820 nm, an absorbed threshold power of 214 mW, a slope efficiency of 4.2%, and maximum extracted power of 12.5 mW were measured.

© 1994 Optical Society of America

Dual-wavelength continuous-wave cascade oscillation at 3 and 2 µm with a holmium-doped fluoride-glass fiber laser

Tetsumi Sumiyoshi and Hitoshi Sekita
Opt. Lett. 23(23) 1837-1839 (1998)

Single-transverse-mode 2.5-W holmium-doped fluoride fiber laser operating at 2.86 µm

Stuart D. Jackson
Opt. Lett. 29(4) 334-336 (2004)

Directly diode-pumped holmium fiber lasers

Stuart D. Jackson, F. Bugge, and G. Erbert
Opt. Lett. 32(17) 2496-2498 (2007)

High-power 83 W holmium-doped silica fiber laser operating with high beam quality

Stuart D. Jackson, Alex Sabella, Alex Hemming, Shayne Bennetts, and David G. Lancaster
Opt. Lett. 32(3) 241-243 (2007)

Tm³⁺:YLF laser continuously tunable between 2.20 and 2.46 μm

Joseph F. Pinto, Leon Esterowitz, and Gregg H. Rosenblatt
Opt. Lett. 19(12) 883-885 (1994)