Pulse temporal and spatial chirping by a bulk Kerr medium in a regenerative amplifier

Author

Yan, Li ; Liu, Yuan-Qun ; Lee, Chi H.

Author_Institution

Dept. of Electr. Eng., Maryland Univ., Baltimore, MD, USA

Volume

30

Issue

9

fYear

1994

fDate

9/1/1994 12:00:00 AM

Firstpage

2194

Lastpage

2202

Abstract

The temporal and spatial chirping of a pulse by a bulk Kerr medium in a regenerative amplifier is analyzed. Utilizing the waveguide nature of an optical resonator, temporal self-phase modulation can cumulate through multiple passes as large as ~40 rad, while the nonlinear phase shift associated with spatial chirping is confined to ~1.5 rad, thus reducing the degree of spatial chirping to less than 4 percent. We show that the Guoy phase shift reduces the magnitude of self-phase modulation. Experimental results of pulse chirping in a neodymium:phosphate glass regenerative amplifier agree with the theoretical calculations. Direct compression of highly chirped, amplified pulses by a pair of gratings produces 10 μJ, 300 fs pulses at a 500 Hz repetition rate

Keywords

optical Kerr effect; optical modulation; optical resonators; 10 muJ; 300 fs; 500 Hz; Guoy phase shift; bulk Kerr medium; gratings; neodymium:phosphate glass; nonlinear phase shift; optical resonator; pulse compression; regenerative amplifier; spatial chirping; temporal chirping; temporal self-phase modulation; waveguide; Chirp modulation; Glass; Gratings; Optical amplifiers; Optical pulses; Optical resonators; Optical waveguides; Phase modulation; Pulse amplifiers; Pulse compression methods;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/3.309883

Filename

309883