Laser source for emitting a group of pulses
AssigneesCentre National De La Recherche Scientifique, Institut National Des Sciences Appliquees-Rouen, Universite De Rouen Normandie
InventorsAmmar HIDEUR, Adil HABOUCHA, Arnaud BULTEL, Said IDLAHCEN, Thomas GODIN
Life of this patent
Estimating the term…
Abstract
A laser source for emitting a group of pulses, includes a primary laser source suitable for emitting at least one primary laser pulse; at least one interferometer suitable for forming, from the primary laser pulse, a plurality of secondary laser pulses, each interferometer comprising at least one delay line allowing two secondary laser pulses to be temporally separated, by a delay comprised between 50 ps and 10 ns; and a single-mode amplifying optical fiber intended to receive the secondary laser pulses, in order to form as output a group of spatially superposed pulses.
Claims14
A laser source for emitting a group of pulses, comprising:
- a primary laser source suitable for emitting at least one primary laser pulse,
- one or more interferometers suitable for forming, from said primary laser pulse, a plurality of secondary laser pulses, each interferometer comprising at least one delay line allowing two secondary laser pulses to be temporally separated by a delay (Δt, Δt′) comprised between 50 ps and 10 ns, said one or more interferometers comprising means for spectrally and/or temporally forming at least one of the secondary laser pulses.
- a single-mode amplifying optical fiber intended to receive said plurality of secondary laser pulses, in order to form as output a group of spatially superposed pulses.
A method for generating a group of pulses, comprising the following steps:
- emitting at least one primary laser pulse,
- generating, from said primary pulse, a plurality of secondary laser pulses that are temporally separated by a delay comprised between 50 ps and 10 ns, by means of one or more interferometers, said generating step furthermore comprising the step of spectrally and/or temporally forming at least one of the secondary laser pulses,
- injecting the secondary laser pulses into a single-mode amplifying optical fiber in order to form a group of spatially superposed pulses.
Dependencies are inferred from the claim text.