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20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier

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Yb:CaGdAlO4 thin-disk laser.

S Ricaud¹, A Jaffres, P Loiseau

¹Laboratoire Charles Fabry, UMR 8501, Institut d’Optique, CNRS, Université Paris Sud 11, 2 Avenue Augustin Fresnel, 91127 Palaiseau Cedex, France. sandrine.ricaud@institutoptique.fr

|November 4, 2011

Summary

This study demonstrates the first Ytterbium-doped Calcium Lithium Gallium Orthosilicate (Yb:CALGO) thin-disk laser. It achieved high average power and tunable wavelength output, showcasing its potential for various laser applications.

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Area of Science:

Laser Physics
Materials Science
Solid-State Lasers

Background:

Thin-disk laser technology offers excellent thermal management for high-power operation.
Ytterbium-doped gain media are crucial for efficient laser operation in the near-infrared spectrum.

Purpose of the Study:

To demonstrate the first Ytterbium-doped Calcium Lithium Gallium Orthosilicate (Yb:CALGO) thin-disk laser.
To characterize its performance in terms of output power, efficiency, tunability, and pulsed operation.

Main Methods:

Fabrication and characterization of a Yb:CALGO thin-disk laser.
Operation in both slightly multimode and single-mode configurations.
Inclusion of a prism for demonstrating wavelength tunability.
Q-switching for pulsed energy measurements.

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Main Results:

Achieved up to 30 W of average power with 40% slope efficiency in a multimode configuration.
Obtained 25 W of average power in a single-mode cavity.
Demonstrated a tuning range from 1018 nm to 1052 nm.
Produced 1 mJ pulse energy at 100 Hz in the Q-switched regime.

Conclusions:

The Yb:CALGO thin-disk laser is a viable platform for high-power, tunable laser generation.
The results highlight the potential of Yb:CALGO as a gain medium for advanced laser systems.
Further research can explore optimization for even higher power and specific wavelength applications.