Ultrashort laser pulse splitting upon resonant reflection on a mirror-based waveguide grating.
A resonant waveguide grating based on a high reflectivity mirror causes a 2pi phaseshift of adjustable slope in the spectrum of an ultrashort light pulse, giving rise to a controllable, lossless temporal pulse splitting. This monolithic phase shifter can simply be placed on the path of the beam as a mirror. A functional element was designed and fabricated. Temporal splitting of a femtosecond laser pulse is experimentally demonstrated. The possibility of obtaining variable delay between subpulses is theoretically discussed.
Laboratoire Hubert Curien, CNRS-UMR 5516, Saint-Etienne, France.
David
D
Pietroy
Manuel
M
Flury
Olivier
O
Parriaux
Carl
C
Liebig
Razvan
R
Stoian
Etienne
E
Quesnel
D003198:Computer Simulation; D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D007834:Lasers; D007909:Lenses; D008027:Light; D008962:Models, Theoretical; D012031:Refractometry / Q000295:instrumentation*; D012542:Scattering, Radiation