Optical parametric amplification pumped by a phase-aberrated beam | Zendy

Xiaohong Wei | Zendy; Liejia Qian | Zendy; Peng Yuan | Zendy; Heyuan Zhu | Zendy; Dianyuan Fan | Zendy

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Optical parametric amplification pumped by a phase-aberrated beam

Author(s) -

Xiaohong Wei,

Liejia Qian,

Peng Yuan,

Heyuan Zhu,

Dianyuan Fan

Publication year - 2008

Publication title -

optics express

Language(s) - Uncategorized

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.16.008904

Subject(s) - signal beam , optics , chirped pulse amplification , beam (structure) , signal (programming language) , phase (matter) , laser beam quality , parametric statistics , physics , optical parametric amplifier , regenerative amplification , phase conjugation , optical amplifier , laser , laser beams , ultrashort pulse , computer science , statistics , mathematics , quantum mechanics , programming language

In this paper we theoretically study the spatial characteristics of optical parametric amplification (OPA) or chirped pulse OPA (OPCPA) pumped with a phase-aberrated beam. Due to the fact that pump-to-signal phase transfer caused by walk-off effect is highly gain-dependent, in a high gain OPA system the signal beam-quality will be significantly degraded even for a weak walk-off, accompanied with beam tilting and converging or diverging. It is demonstrated that an OPA configuration with walkoff-compensated crystal pair is capable of reducing the phase transfer and hence ensuring signal beam-quality, which may be of importance for designing high-energy OPCPA systems.

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