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

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Power scalable semiconductor disk laser using multiple gain cavity.

Esa J Saarinen, Antti Härkönen, Soile Suomalainen

|June 18, 2009

Summary

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Optically-pumped semiconductor disk lasers achieved over 8 W output power using a dual-gain scheme. This method improves power scaling and maintains beam quality by reducing thermal load.

Area of Science:

Laser Physics
Semiconductor Lasers
Optics

Background:

Optically-pumped semiconductor disk lasers are crucial for high-power applications.
Thermal rollover limits the output power of single-gain semiconductor lasers.

Purpose of the Study:

To investigate power scaling of optically-pumped semiconductor disk lasers.
To explore the effectiveness of a multiple gain scheme for enhanced laser performance.

Main Methods:

Utilized a dual-gain configuration in an optically-pumped semiconductor disk laser.
Analyzed the impact of reduced thermal load on laser output characteristics.

Main Results:

Achieved a total output power exceeding 8 W with the dual-gain configuration.

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Related Experiment Videos

Last Updated: Jun 22, 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

Laser-induced Forward Transfer for Flip-chip Packaging of Single Dies

Laser-induced Forward Transfer for Flip-chip Packaging of Single Dies

Published on: March 20, 2015

Single-gain lasers produced approximately 4 W, limited by thermal rollover.

Demonstrated significant power improvement while preserving good beam quality.

Conclusions:

A multiple gain scheme, specifically dual-gain, effectively scales power in optically-pumped semiconductor disk lasers.
Reduced thermal load in dual-gain cavities allows for higher usable pump powers and increased laser output.