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4 March 2022 Simultaneous coherent pulse stacking amplification and spatial combining of ultrashort pulses at multi-mJ energies
Mathew Whittlesey, Alexander Rainville, Christopher Pasquale, Mingshu Chen, Siyun Chen, Qiang Du, Almantas Galvanauskas
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Proceedings Volume PC11981, Fiber Lasers XIX: Technology and Systems; PC119810B (2022) https://doi.org/10.1117/12.2610177
Event: SPIE LASE, 2022, San Francisco, California, United States
Abstract
We demonstrate, to our knowledge, the first operation of a simultaneous spatial combining and CPSA system that provides 9mJ from two amplifier channels and coherently stacks 81 pulses to a single pulse and compresses the output to ~515fs duration. This demonstrates that CPSA with spatial coherent combining enables energy scaling of ultrashort pulses with fewer parallel channels. Future work will involve increasing energy per channel, average power per channel, the number of fiber channels and reducing the pulse duration.
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Mathew Whittlesey, Alexander Rainville, Christopher Pasquale, Mingshu Chen, Siyun Chen, Qiang Du, and Almantas Galvanauskas "Simultaneous coherent pulse stacking amplification and spatial combining of ultrashort pulses at multi-mJ energies", Proc. SPIE PC11981, Fiber Lasers XIX: Technology and Systems, PC119810B (4 March 2022); https://doi.org/10.1117/12.2610177
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KEYWORDS
Ultrafast phenomena
Fiber lasers
Laser systems engineering
Amplifiers
Energy efficiency
Plasma
Plasma generation
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