Group-velocity-mismatch compensation in cascaded third-harmonic generation with two-dimensional quasi-phase-matching gratings.
A novel scheme to achieve broadband cascaded third-harmonic generation by use of two-dimensional quasi-phase-matching gratings is proposed. Intrinsic group-velocity mismatch is compensated by the pulse front tilt in noncollinear interaction geometry. The presented scheme enables broadband third-harmonic generation in a single device of long interaction length, which reduces the operation intensity dramatically.
Fujioka
Nobuhide
N
Institute of Industrial Science, The University of Tokyo, Japan. fujioka@iis.u-tokyo.ac.jp
Ashihara
Satoshi
S
Ono
Hidenobu
H
Shimura
Tsutomu
T
Kuroda
Kazuo
K