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20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
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Decoupling chaotic amplification and nonlinear phase in high-energy thin-disk amplifiers for stable OPCPA pumping
Optics Express
|January 22, 2015
Summary
Stable laser operation for optical parametric amplification requires balancing pulse dynamics and spectral phase. This ensures reproducible pumping for nonlinear processes using chirped pulse amplification in thin-disk regenerative amplifiers.
Area of Science:
- Laser physics and nonlinear optics.
- Ultrafast optics and high-intensity laser systems.
Background:
- Chirped Pulse Amplification (CPA) is crucial for high-power laser systems.
- Thin-disk regenerative amplifiers are used in CPA systems.
- Pumping optical parametric chirp pulse amplification (OPCPA) systems requires stable laser sources.
Purpose of the Study:
- To describe the dynamics of CPA in thin-disk regenerative amplifiers.
- To identify requirements for reproducible pumping of OPCPA systems.
- To ensure stable laser operation for nonlinear optical processes.
Main Methods:
- Analysis of pulse train dynamics in thin-disk regenerative amplifiers.
- Investigation of spectral phase reproducibility.
- Identification of operational regimes for stable laser output.
Main Results:
- Chaotic pulse train dynamics must be avoided for reproducible pumping.
- Reproducible spectral phase is essential for subsequent nonlinear processes.
- A balance between avoiding chaos and ensuring spectral phase stability is required.
Conclusions:
- Optimizing CPA in thin-disk amplifiers is key for stable OPCPA pumping.
- Careful control of laser dynamics ensures reproducible nonlinear optical processes.
- Measures are described to achieve stable operation in regenerative amplifiers.
