Beyond nonlinear saturation of backward Raman amplifiers

Barth, Ido; Toroker, Zeev; Balakin, Alexey A.; Fisch, Nathaniel J.

doi:10.1103/PhysRevE.93.063210

Title: Beyond nonlinear saturation of backward Raman amplifiers

Journal Article · Mon Jun 27 00:00:00 EDT 2016 · Physical Review E

DOI:https://doi.org/10.1103/PhysRevE.93.063210· OSTI ID:1305352

^[1]; Toroker, Zeev ^[2]; Balakin, Alexey A. ^[3];

^[4]

Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
Technion Israel Inst. of Technology, Haifa (Israel)
Inst. of Applied Physics RAS, Nizhnii Novgorod (Russia)
Princeton Univ., NJ (United States). Dept. of Astrophysical Sciences

Backward Raman amplification is limited by relativistic nonlinear dephasing resulting in saturation of the leading spike of the amplified pulse. We employed pump detuning in order to mitigate the relativistic phase mismatch and to overcome the associated saturation. In an amplified pulse can then be reshaped into a monospike pulse with little precursory power ahead of it, with the maximum intensity increasing by a factor of two. Finally, this detuning can be employed advantageously both in regimes where the group velocity dispersion is unimportant and where the dispersion is important but small.

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Research Organization:: Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA)

Grant/Contract Number:: NA0002948; FA9550-15-1-0391; AC02-09CH11466; HDTRA1-11-1-0037; 15-32-20641

OSTI ID:: 1305352

Alternate ID(s):: OSTI ID: 1259580

Journal Information:: Physical Review E, Vol. 93, Issue 6; ISSN 2470-0045

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 16 works

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Title: Beyond nonlinear saturation of backward Raman amplifiers

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