Raman beam combining for laser brightness enhancement
Abstract
An optical source capable of enhanced scaling of pulse energy and brightness utilizes an ensemble of single-aperture fiber lasers as pump sources, with each such fiber laser operating at acceptable pulse energy levels. Beam combining involves stimulated Raman scattering using a Stokes' shifted seed beam, the latter of which is optimized in terms of its temporal and spectral properties. Beams from fiber lasers can thus be combined to attain pulses with peak energies in excess of the fiber laser self-focusing limit of 4 MW while retaining the advantages of a fiber laser system of high average power with good beam quality.
- Inventors:
- Issue Date:
- Research Org.:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1224423
- Patent Number(s):
- 9172208
- Application Number:
- 13/771,770
- 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: 2013 Feb 20
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 43 PARTICLE ACCELERATORS
Citation Formats
Dawson, Jay W., Allen, Graham S., Pax, Paul H., Heebner, John E., Sridharan, Arun K., Rubenchik, Alexander M., and Barty, Chrisopher B. J. Raman beam combining for laser brightness enhancement. United States: N. p., 2015.
Web.
Dawson, Jay W., Allen, Graham S., Pax, Paul H., Heebner, John E., Sridharan, Arun K., Rubenchik, Alexander M., & Barty, Chrisopher B. J. Raman beam combining for laser brightness enhancement. United States.
Dawson, Jay W., Allen, Graham S., Pax, Paul H., Heebner, John E., Sridharan, Arun K., Rubenchik, Alexander M., and Barty, Chrisopher B. J. Tue .
"Raman beam combining for laser brightness enhancement". United States. https://www.osti.gov/servlets/purl/1224423.
@article{osti_1224423,
title = {Raman beam combining for laser brightness enhancement},
author = {Dawson, Jay W. and Allen, Graham S. and Pax, Paul H. and Heebner, John E. and Sridharan, Arun K. and Rubenchik, Alexander M. and Barty, Chrisopher B. J.},
abstractNote = {An optical source capable of enhanced scaling of pulse energy and brightness utilizes an ensemble of single-aperture fiber lasers as pump sources, with each such fiber laser operating at acceptable pulse energy levels. Beam combining involves stimulated Raman scattering using a Stokes' shifted seed beam, the latter of which is optimized in terms of its temporal and spectral properties. Beams from fiber lasers can thus be combined to attain pulses with peak energies in excess of the fiber laser self-focusing limit of 4 MW while retaining the advantages of a fiber laser system of high average power with good beam quality.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Oct 27 00:00:00 EDT 2015},
month = {Tue Oct 27 00:00:00 EDT 2015}
}
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