Tunability of a 2 um TmHo laser

Heinz P. Weber; Willy A.R. Luethy

doi:10.1117/12.293475

1 November 1997 Tunability of a 2-μm TmHo laser

Heinz P. Weber, Willy A.R. Luethy

Proceedings Volume 3176, Tunable Solid State Lasers; (1997) https://doi.org/10.1117/12.293475
Event: Tunable Solid State Lasers, 1996, Wroclaw, Poland

Abstract

In this paper we show that 2 micrometers Tm³⁺:Ho³⁺ silica fiber lasers have promising properties for applications in laser medicine and in lidar applications. 2 micrometers lasers are interesting for measurements in the atmosphere since in this range there are several absorption lines of water vapor. 2 micrometers lasers can be used for lidar applications if their wavelength can be controlled. In contrast to crystal lasers glass fiber lasers can be tuned continuously over a range of about 80 nm. The excitation can be performed in a wide range of pump wavelengths and with different geometrical arrangements. With Ti:sapphire pumping a laser output of 71 mW with a slope efficiency of 17.5 percent has been reached. The possibility of side-pumping together with the development of fibers with lower losses will allow to reach the power levels that are necessary for the mentioned applications.

Citation Download Citation

Heinz P. Weber and Willy A.R. Luethy "Tunability of a 2-μm TmHo laser", Proc. SPIE 3176, Tunable Solid State Lasers, (1 November 1997); https://doi.org/10.1117/12.293475

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