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Updated: Jun 6, 2026

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

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

Published on: July 12, 2017

Highly efficient, high-power, broadly tunable, cryogenically cooled and diode-pumped Yb:CaF2.

S Ricaud¹, D N Papadopoulos, P Camy

¹Laboratoire Charles Fabry de l'Institut d'Optique (LCFIO), UMR 8501CNRS, Université Paris-Sud, RD 128 Campus Polytechnique, 91127 Palaiseau, France. sandrine.ricaud@institutoptique.fr

|November 18, 2010

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We developed a high-power Ytterbium-doped Calcium Fluoride (Yb:CaF2) laser operating efficiently at cryogenic temperatures (77 K). This laser achieved 97 W output power with a 65% global extraction efficiency, demonstrating its potential for advanced applications.

Area of Science:

Laser Physics
Solid-State Lasers
Cryogenic Engineering

Background:

Diode-pumped solid-state lasers (DPSSLs) are crucial for various applications.
Cryogenic operation can enhance laser performance by reducing thermal effects.
Yb:CaF2 is a promising gain medium due to its favorable spectroscopic properties.

Purpose of the Study:

To investigate the performance of a diode-pumped Yb:CaF2 laser at cryogenic temperatures.
To achieve high output power and efficiency.
To characterize the laser's gain and tunability.

Main Methods:

Utilized a diode-pumped Yb:CaF2 laser system.
Operated the laser at a cryogenic temperature of 77 K.
Measured output power, pump power, extraction efficiency, small signal gain, and wavelength tunability.

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Construction and Characterization of External Cavity Diode Lasers for Atomic Physics

Construction and Characterization of External Cavity Diode Lasers for Atomic Physics

Published on: April 24, 2014

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Last Updated: Jun 6, 2026

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

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

Published on: July 12, 2017

Construction and Characterization of External Cavity Diode Lasers for Atomic Physics

Construction and Characterization of External Cavity Diode Lasers for Atomic Physics

Published on: April 24, 2014

Main Results:

Achieved a maximum output power of 97 W at 1034 nm for 245 W pump power.
Obtained a global extraction efficiency of 65% with respect to absorbed pump power.
Measured a small signal gain of 3.1.
Demonstrated wavelength tunability from 990 nm to 1052 nm.

Conclusions:

High-power, high-efficiency operation of a diode-pumped Yb:CaF2 laser at 77 K is feasible.
Cryogenic operation significantly enhances laser performance.
The tunable output and high gain make this laser suitable for demanding applications.