SIMULTANEOUS SPATIAL AND TEMPORAL WALK-OFF COMPENSATION IN FREQUENCY-DOUBLING FEMTOSECOND PULSES IN BETA-BAB2O4

Authors
GEHR RJ KIMMEL RW SMITH AV
Citation
Rj. Gehr et al., SIMULTANEOUS SPATIAL AND TEMPORAL WALK-OFF COMPENSATION IN FREQUENCY-DOUBLING FEMTOSECOND PULSES IN BETA-BAB2O4, Optics letters, 23(16), 1998, pp. 1298-1300
Citations number
11
Categorie Soggetti
Optics
Journal title
Optics letters → ACNP
ISSN journal
01469592
Volume
23
Issue
16
Year of publication
1998
Pages
1298 - 1300
Database
ISI
SICI code
0146-9592(1998)23:16<1298:SSATWC>2.0.ZU;2-F
Abstract
We experimentally demonstrate the benefits of simultaneous compensatio n of spatial and temporal walk-off in frequency doubling of 800-nm 250 -fs pulses, using three active and two compensating beta-BaB2O4 crysta ls. The compensating crystals reverse both birefringent and group-velo city walk-off, resulting in a factor-of-4.5 improvement in doubling ef ficiency relative to one of the active crystals while maintaining the short pulse duration and the symmetric spatial profile that are charac teristic of the single crystal. (C) 1998 Optical Society of America.