Efficient harmonic generation with a broad-band laser

Author

Skeldon, Mark D. ; Craxton, R. Stephen ; Kessler, Terrance J. ; Seka, Wolf ; Short, Robert W. ; Skupsky, Stanley ; Soures, John M.

Author_Institution

Lab. for Laser Energetics, Rochester Univ., NY, USA

Volume

28

Issue

5

fYear

1992

fDate

5/1/1992 12:00:00 AM

Firstpage

1389

Lastpage

1399

Abstract

Harmonic generation using a broadband input beam is studied theoretically and experimentally. Angular spectral dispersion is imposed on the input beam to improve the phase matching and thereby increase the conversion efficiency. The coupled amplitude equations are derived for a grating-dispersed input beam, and it is shown that, in the parameter range of interest, a simple theoretical model based on the intuitive concept of instantaneous frequency suffices to describe the nonlinear interaction. A laser having a frequency-chirped output with a 25-Å bandwidth is used to demonstrate the technique for third-harmonic generation in the small-signal regime

Keywords

laser beams; optical harmonic generation; angular spectral dispersion; broad-band laser; broadband input beam; conversion efficiency; coupled amplitude equations; frequency-chirped output; grating-dispersed input beam; nonlinear interaction; phase matching; simple theoretical model; small-signal regime; third-harmonic generation; Bandwidth; Equations; Frequency conversion; Laser beams; Laser fusion; Laser mode locking; Laser modes; Laser theory; Optical harmonic generation; Variable speed drives;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/3.135282

Filename

135282