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Room-temperature diode-pumped Yb:KYF(4) laser.

Gianluca Galzerano¹, Paolo Laporta, Elisa Sani

¹Istituto di Fotonica e nanotecnologie-Consiglio Nazionale delle Richerche and Dipartimento di Fisica del Politecnico di Milano, Italy. gianluca.galzerano@fisi.polimi.it

|October 31, 2006

Summary

Continuous-wave laser action was achieved in a ytterbium-doped potassium yttrium fluoride (Yb:KYF(4)) crystal. This research presents crystal growth, spectroscopy, and laser performance, achieving 505 mW output power and 65nm tunability.

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Area of Science:

Laser physics and materials science.

Background:

Diode-pumped solid-state lasers are crucial for various applications.
Yb-doped fluoride crystals offer potential for efficient laser operation.

Purpose of the Study:

To demonstrate continuous-wave laser action in a diode-pumped Yb:KYF(4) crystal.
To characterize the crystal growth, spectroscopic properties, and laser performance.

Main Methods:

Crystal growth of Yb:KYF(4).
Spectroscopic measurements to determine optical properties.
Diode-pumping experiments to achieve laser action.

Main Results:

Continuous-wave laser operation achieved in Yb:KYF(4).
Maximum output power of 505 mW obtained.

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Slope efficiency of 43% and wavelength tunability of 65 nm (1013–1078 nm) demonstrated at room temperature.

Conclusions:

Yb:KYF(4) is a promising material for diode-pumped lasers.
The demonstrated performance highlights its potential for tunable laser applications.