Phasefront preservation in high-gain Raman amplification

Phasefront preservation in high-gain Raman amplification

Experiments were performed to determine the degree of phasefront preservation possible in a high-gain, large-Fresnel-number number Raman amplifier. Phasefront information was encoded on a Stokes seed, which was then amplified in a 10-atm vibrational hydrogen Raman amplifier pumped by a XeF excimer l...

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Veröffentlicht in:IEEE journal of quantum electronics 1990-07, Vol.26 (7), p.1285-1291
Hauptverfasser: Nicholson, B.W., Russell, J.A., Trainor, D.W., Roberts, T., Higgs, C.
Format: Artikel
Sprache:eng
Schlagworte:
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Laboratories
Laser beams
Laser excitation
Laser modes
Nonlinear optics
Optical amplifiers
Optical control
Optical pulses
Optical resonators
Optics
Physics
Pump lasers
Stimulated emission
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Beschreibung
Zusammenfassung:Experiments were performed to determine the degree of phasefront preservation possible in a high-gain, large-Fresnel-number number Raman amplifier. Phasefront information was encoded on a Stokes seed, which was then amplified in a 10-atm vibrational hydrogen Raman amplifier pumped by a XeF excimer laser. Interferometric data on the input and amplified Stokes beam indicate that their phasefront difference is less than 0.1 wave RMS. These results are consistent with the predictions of a numerical model of the Raman amplification process.< >
ISSN:0018-9197
1558-1713
DOI:10.1109/3.59669