Thin-disk ring amplifier for high pulse energy.

Area of Science:

• Laser Physics
• Materials Science
• Optical Engineering

Background:

• High pulse energy and high average power lasers are crucial for scientific and industrial applications.
• Existing laser technologies face limitations in achieving both high energy and high repetition rates simultaneously.

Purpose of the Study:

• To develop a compact chirped-pulse amplification (CPA) laser system capable of high pulse energy at high average power.
• To leverage Ytterbium-doped Yttrium Aluminum Garnet (Yb:YAG) thin-disk technology for enhanced laser performance.

Main Methods:

• The system utilizes Yb:YAG thin-disk technology.
• A common oscillator, grating stretcher, and compressor feed two identical amplifier chains.
• Each amplifier chain incorporates a regenerative amplifier and a ring amplifier.

Main Results:

• The developed CPA laser system provides two independent laser beams.
• Each beam delivers pulse energy exceeding 500 mJ.
• The system operates at a 100 Hz repetition rate with a 2 ps pulse duration.

Conclusions:

• The Yb:YAG thin-disk CPA laser system successfully achieves high pulse energy and high average power.
• The dual-beam output with individual dispersion control offers flexibility for advanced laser applications.
• This technology advances the capabilities of high-power laser systems.