Scaling high-energy pulsed solid-state lasers to high average power
Abstract
Techniques are provided for scaling the average power of high-energy solid-state lasers to high values of average output power while maintaining high efficiency. An exemplary technique combines a gas-cooled-slab amplifier architecture with a pattern of amplifier pumping and extraction in which pumping is continuous and in which only a small fraction of the energy stored in the amplifier is extracted on any one pulse. Efficient operation is achieved by propagating many pulses through the amplifier during each period equal to the fluorescence decay time of the gain medium, so that the preponderance of the energy cycled through the upper laser level decays through extraction by the amplified pulses rather than through fluorescence decay.
- Inventors:
- Issue Date:
- Research Org.:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1892807
- Patent Number(s):
- 11296478
- Application Number:
- 16/678,063
- Assignee:
- Lawrence Livermore National Security, LLC (Livermore, CA)
- Patent Classifications (CPCs):
-
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01S - DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT
- DOE Contract Number:
- AC52-07NA27344
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 11/08/2019
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Erlandson, Alvin C., Bayramian, Andrew J., Haefner, Constantin L., Siders, Craig W., Galvin, Thomas C., and Spinka, Thomas M. Scaling high-energy pulsed solid-state lasers to high average power. United States: N. p., 2022.
Web.
Erlandson, Alvin C., Bayramian, Andrew J., Haefner, Constantin L., Siders, Craig W., Galvin, Thomas C., & Spinka, Thomas M. Scaling high-energy pulsed solid-state lasers to high average power. United States.
Erlandson, Alvin C., Bayramian, Andrew J., Haefner, Constantin L., Siders, Craig W., Galvin, Thomas C., and Spinka, Thomas M. Tue .
"Scaling high-energy pulsed solid-state lasers to high average power". United States. https://www.osti.gov/servlets/purl/1892807.
@article{osti_1892807,
title = {Scaling high-energy pulsed solid-state lasers to high average power},
author = {Erlandson, Alvin C. and Bayramian, Andrew J. and Haefner, Constantin L. and Siders, Craig W. and Galvin, Thomas C. and Spinka, Thomas M.},
abstractNote = {Techniques are provided for scaling the average power of high-energy solid-state lasers to high values of average output power while maintaining high efficiency. An exemplary technique combines a gas-cooled-slab amplifier architecture with a pattern of amplifier pumping and extraction in which pumping is continuous and in which only a small fraction of the energy stored in the amplifier is extracted on any one pulse. Efficient operation is achieved by propagating many pulses through the amplifier during each period equal to the fluorescence decay time of the gain medium, so that the preponderance of the energy cycled through the upper laser level decays through extraction by the amplified pulses rather than through fluorescence decay.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2022},
month = {4}
}
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