Overcoming gas ionization limitations with divided-pulse nonlinear compression
We simulate Kerr and plasma nonlinearities in a hollow-core fiber to show how plasma effects degrade the output pulse. Our simulations predict the plasma effects can be avoided entirely by implementing divided-pulse nonlinear compression. In divided-pulse nonlinear compression, a high-energy pulse is divided into multiple low-energy pulses, which are spectrally broadened in the hollow-core fiber and then recombined into a high-energy, spectrally broadened pulse. With the plasma effects overcome, spectral broadening can be scaled to larger broadening factors and higher pulse energies. We anticipate this method will also be useful to scale spectral broadening in gas-filled multipass cells.
- Research Organization:
- Univ. of Rochester, NY (United States). Lab. for Laser Energetics
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA)
- Contributing Organization:
- Laboratory for Laser Energetics, University of Rochester
- Grant/Contract Number:
- NA0003856
- OSTI ID:
- 1671348
- Alternate ID(s):
- OSTI ID: 1675374
- Report Number(s):
- 2020-171, 2586, 2541; OPEXFF
- Journal Information:
- Optics Express, Journal Name: Optics Express Vol. 28 Journal Issue: 21; ISSN 1094-4087
- Publisher:
- Optical Society of America (OSA)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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