Compressible frequency chirping due to slow and fast self-phase modulation of ultrashort pulses and high-gain dye laser amplifiers

Author

Dienes, Andrew ; Carr, Lewis W. ; Hong, Meng-Yuan

Author_Institution

Dept. of Electr. Eng. & Comput. Sci., California Univ., Davis, CA, USA

Volume

27

Issue

5

fYear

1991

fDate

5/1/1991 12:00:00 AM

Firstpage

1214

Lastpage

1220

Abstract

A theoretical investigation was conducted of the amplitude and phase changes in high-gain ultrashort pulse dye laser amplifiers for cases when the beam area is rather small and the pulse spectral center is not located at the amplifier gain peak. Due to high energy densities as well as high intensities, both slow (saturation-induced) and fast (Kerr-type) self-phase modulation can take place. Under certain conditions, these effects can together produce a considerable amount of mostly linear carrier chirp, resulting in compressible bandwidth enhancement. Compression of the amplified pulses is also calculated using quadratic and quadratic-plus-cubic phase compensation

Keywords

dye lasers; high-speed optical techniques; optical Kerr effect; optical modulation; optical saturable absorption; Kerr-type; amplified pulses; amplitude changes; beam area; compressible bandwidth enhancement; compressible frequency chirping; energy densities; fast self-phase modulation; gain peak; high-gain dye laser amplifiers; linear carrier chirp; phase changes; pulse spectral center; quadratic and quadratic-plus-cubic phase compensation; saturation-induced; theoretical investigation; ultrashort pulses; Bandwidth; Chirp modulation; Frequency; Intensity modulation; Laser beams; Laser theory; Laser transitions; Optical pulses; Pulse amplifiers; Pulse compression methods;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/3.83379

Filename

83379