Title :
Phasefront preservation in high-gain Raman amplification
Author :
Nicholson, B.W. ; Russell, J.A. ; Trainor, Daniel W. ; Roberts, T. ; Higgs, Charles
Author_Institution :
Avco Res. Lab. Inc., Everett, MA, USA
fDate :
7/1/1990 12:00:00 AM
Abstract :
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
Keywords :
Raman lasers; gas lasers; hydrogen; optical phase conjugation; optical pumping; 10 atm; Stokes beam; Stokes seed; XeF excimer laser; encoded; high-gain Raman amplification; interferometric data; large-Fresnel-number number Raman amplifier; laser pumping; phasefront preservation; vibrational H2 laser; Laboratories; Laser beams; Laser excitation; Laser modes; Optical amplifiers; Optical control; Optical pulses; Optical resonators; Pump lasers; Stimulated emission;
Journal_Title :
Quantum Electronics, IEEE Journal of
