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Bidirectional ring amplifier with twin pulses for high-power lasers
Optics Express
|August 18, 2018
Summary
A new bidirectional ring amplifier design achieves high energy output (13.4 kJ) and 62.3% extraction efficiency for high-power lasers. This compact design offers advantages over traditional multi-pass amplifiers.
Area of Science:
- Optics and Photonics
- Laser Physics
- High-Power Laser Systems
Background:
- Traditional multi-pass amplifiers face limitations in compactness and efficiency.
- High-power laser systems require efficient energy extraction and management of nonlinear effects.
Purpose of the Study:
- To propose and simulate a novel bidirectional ring amplifier with twin pulses.
- To evaluate its performance in terms of output energy and extraction efficiency.
Main Methods:
- Detailed numerical simulations were performed on the proposed bidirectional ring amplifier.
- Performance metrics including output energy, extraction efficiency, and B integral were analyzed.
Main Results:
- Achieved an extraction efficiency of 62.3% and an output energy of 13.4 kJ per pulse.
- Operated at a low average fluence of 10.3 J/cm² and low injection energy of 3.9 mJ.
- Demonstrated superior compactness and higher extraction efficiency compared to multi-pass amplifiers.
Conclusions:
- The bidirectional ring amplifier offers a more compact and efficient solution for high-power lasers.
- This design simplifies preamplifier systems and mitigates nonlinear phase shift effects.
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