1.
Opt Lett
; 34(3): 241-3, 2009 Feb 01.
Artigo
em Inglês
| MEDLINE
| ID: mdl-19183618
RESUMO
Narrow-bandwidth picosecond pulses of predetermined spectral and temporal shapes are generated with high efficiency by frequency conversion of femtosecond pulses in lithium tantalate crystals with engineered quasi-phase-matching structures. We give examples of the synthesis of Gaussian and super-Gaussian picosecond pulses and also of a pair of synchronized phase-coherent picosecond pulses with a predetermined carrier-frequency difference.