High-gain, high-efficiency stimulated Raman amplification with beam clean-up

Stokes amplification has been demonstrated in a single-stage Raman amplifier using collinear geometry with near-diffraction-limited seeds at very high efficiency and relatively high fluence, producing near-diffraction-limited Stokes beams from highly aberrated pump sources. Single-stage amplificatio...

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Bibliographic Details
Published inJournal of applied physics Vol. 66; no. 10; pp. 4625 - 4634
Main Authors MANDL, A, HOLMES, R, FLUSBERG, A, FULGHUM, S, ANGELEY, D
Format Journal Article
LanguageEnglish
Published Woodbury, NY American Institute of Physics 15.11.1989
Subjects
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Nonlinear optics
Optics
Physics
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Summary:Stokes amplification has been demonstrated in a single-stage Raman amplifier using collinear geometry with near-diffraction-limited seeds at very high efficiency and relatively high fluence, producing near-diffraction-limited Stokes beams from highly aberrated pump sources. Single-stage amplification of over 20 000 was achieved with converted fluences up to 1.5 J/cm2. We find excellent agreement between the experiment and our full Raman code for all the measured parameters. In addition, detailed calculations and measurements of the near-field-fluence distribution on the output Stokes beam agree reasonably well.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
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ISSN:0021-8979
1089-7550
DOI:10.1063/1.343818