US 2017/0038660 A1Published application

Generator of short optical pulses having a very high temporal contrast

AssigneeFastlite

InventorNicolas FORGET

Life of this patent

Estimating the term…

Loading patent…

Abstract

A system for generating short optical pulses having a very high temporal contrast at a wavelength λ, includes: a generator of optical pulses B1 outputting pulses at a wavelength substantially equal to λ; a generator of optical pulses P, B2 outputting pulses at a wavelength substantially equal to 2*λ3; a device R for recombining the pulses from the generators; a parametric amplifier A receiving the output of the recombination device R as an input; a filter F2 extracting, from the output of the parametric amplification device A, a band centered about a wavelength equal to 2*λ; a second harmonic generator NL receiving the output of the filter F2, at the input; a filter F3 centered about a wavelength equal to λ, extracting the second harmonic wavelengths of the pulses produced by the second harmonic generator NL.

Claims18

Dependent claims

System for generating short optical pulses having a very high temporal contrast, with a spectrum centred at a wavelength λ, using the principle of the parametric amplification, which comprises:

a first generator of optical pulses (B1, S) outputting pulses of a duration less than 10 picoseconds at a wavelength substantially equal to λ,
a second generator of optical pulses (B2, P) outputting pulses of a duration less than 10 picoseconds at a wavelength substantially equal to 2*λ/3,
a recombination device (R) for collinearly recombining the pulses from the first and second generator,
a parametric amplification device (A) receiving the output of said recombination device as input (R),
a filter (F2) extracting from the output of the parametric amplification device (A) a band centred about a wavelength substantially equal to 2*λ,
a second harmonic generator (NL) receiving the output of said preceding filter as input (F2),
another filter (F3) centred about a wavelength substantially equal to A, extracting the second harmonic wavelengths of the pulses produced by said second harmonic generator (NL).

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/039,045Filed 28 Nov 2014
Priority: FR 136174128 Nov 2013
Published: 9 Feb 2017
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

G02F 1/39
Non-linear optics: for parametric generation or amplification of light, infrared or ultraviolet waves
G02F 1/353
Non-linear optics: frequency conversion, i.e. wherein a light beam is generated with frequency components different from those of the incident…
G02F 1/37
Non-linear optics: for second-harmonic generation
G02F 1/3507
Constructional details or arrangements of non-linear optical devices, e.g. shape of non-linear crystals: arrangements comprising two or more…