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Updated: Jun 22, 2026
10:17
20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
Published on: July 12, 2017
Period doubling and deterministic chaos in continuously pumped regenerative amplifiers
Optics Express
|May 29, 2009
Summary
Researchers observed multi-energy and chaotic pulse output from a continuously pumped regenerative amplifier. This occurs at dumping rates near the gain medium
Area of Science:
- Laser physics
- Nonlinear optics
- Optical engineering
Background:
- Regenerative amplifiers are crucial for generating high-energy laser pulses.
- Understanding pulse dynamics is essential for controlling amplifier output.
- Yb:glass gain media offer specific advantages in laser systems.
Purpose of the Study:
- To investigate the multi-energy and chaotic pulse energy output regimes in a continuously pumped regenerative amplifier.
- To analyze the operational boundaries between stable and unstable pulsing.
- To determine stability criteria based on amplifier gate length and pump power.
Main Methods:
- Numerical simulations of amplifier dynamics.
- Experimental analysis using a diode-pumped Yb:glass regenerative amplifier.
- Observation of pulse energy output at varying dumping rates.
Main Results:
- Multi-energy and chaotic pulse energy output were observed.
- These phenomena occurred at dumping rates near the inverse upper state lifetime.
- Boundaries for stable and unstable pulsing were identified.
Conclusions:
- The study identifies key operational regimes for regenerative amplifiers.
- Dumping rate is a critical parameter influencing pulse stability and energy distribution.
- Amplifier gate length and pump power significantly affect stability criteria.
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