公开(公告)号：US20170031232A1

公开(公告)日：2017-02-02

申请号：US15100003

申请日：2014-11-28

Applicant: FASTLITE

Inventor： Nicolas FORGET

IPC: G02F1/39 ,  G02F1/37 ,  G02F1/11

CPC classification number: G02F1/39 ,  G02F1/116 ,  G02F1/353 ,  G02F1/37 ,  G02F2001/3507 ,  G02F2001/392 ,  G02F2203/26 ,  H01S3/0057 ,  H01S3/0092 ,  H01S3/10

Abstract: Generator of short optical pulses includes: a generator of optical pulses with a wavelength equal to λ/2 and a spectral width less than λ/3; a generator of optical pulses of a duration less than 10 picoseconds at a wavelength λ/3; a device for recombining the pulses from the generators; a parametric amplification device receiving the output of the recombination device as input; a filter extracting, from the output of the amplification device, a band centred about a wavelength λ; a second harmonic generator receiving the output of the filter and generating a band centred over a wavelength λ/2; a programmable device making it possible to temporally adjust the pulses corresponding to the bands, in order to allow for the generation of a pulse with a wavelength equal to λ/3 and of a duration less than the period of the optical cycle.

Abstract translation: 本发明涉及一种短光脉冲发生器，包括：具有等于λ/ 2波长和光谱宽度小于λ/ 3的光脉冲的发生器（P，B1）; 具有波长λ/ 3的持续时间短于10皮秒的光脉冲的发生器（P，B2）; 装置（RI）将来自发生器的脉冲重新组合; 接收来自重组装置的输出作为输入的参数放大装置（OPA1）; 滤波器（F2）从所述放大装置的输出提取以波长λ为中心的频带; 接收滤波器（F2）的输出并产生以波长λ/ 2为中心的频带的二次谐波发生器（SH）; 以及可编程设备（DCDP2），其能够对与所述频带相对应的脉冲进行基于时间的调整，以使得可以产生波长等于λ/ 3并且持续时间低于光循环周期的脉冲。

公开(公告)号：US20170038660A1

公开(公告)日：2017-02-09

申请号：US15039045

申请日：2014-11-28

Applicant: FASTLITE

Inventor： Nicolas FORGET

IPC: G02F1/39 ,  G02F1/35 ,  G02F1/37

CPC classification number: G02F1/39 ,  G02F1/353 ,  G02F1/37 ,  G02F2001/3507 ,  G02F2001/392 ,  G02F2201/16 ,  G02F2203/26

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.

Abstract translation: 用于产生在波长λ处具有非常高的时间对比度的短光脉冲的系统包括：输出波长基本上等于λ的脉冲的光脉冲B1的发生器; 以大致等于2 *λ3的波长输出脉冲的光脉冲P，B2的发生器; 用于重组来自发生器的脉冲的装置R; 接收复合装置R的输出作为输入的参数放大器A; 从参数放大装置A的输出提取以等于2 *λ的波长为中心的频带的滤波器F2; 在输入端接收滤波器F2的输出的二次谐波发生器NL; 以波长等于λ为中心的滤波器F3，提取由二次谐波发生器NL产生的脉冲的二次谐波波长。

公开(公告)号：US20140139921A1

公开(公告)日：2014-05-22

申请号：US14078721

申请日：2013-11-13

Applicant: FASTLITE

Inventor： Pierre TOURNOIS ,  Nicolas FORGET

IPC: G02B5/18

CPC classification number: G02B5/1814 ,  G02B27/0025 ,  H01S3/0057

Abstract: A device for compensating time dispersions applied to the generation of ultra-short pulses, includes: two transparent optical diffraction gratings (RA, RB), which are identical and parallel to each other, operating on the principle of the Bragg diffraction, and two identical prisms (PA, PB), placed head to tail, in the space separating the optical diffraction gratings (RA, RB), knowing that the outer faces (FeA, FeB) of the prisms are parallel to each other and form a non-zero angle (γ) with the faces of the optical diffraction gratings.

Abstract translation: 用于补偿应用于产生超短脉冲的时间分散的装置包括：两个透明光学衍射光栅（RA，RB），它们彼此相同并且彼此平行，以布拉格衍射原理运行，两个相同 知道棱镜的外表面（FeA，FeB）彼此平行并且形成非零的棱镜（PA，PB），在分离光学衍射光栅（RA，RB）的空间中头部到尾部放置 角度（γ）与光学衍射光栅的面。

公开(公告)号：US20220368097A1

公开(公告)日：2022-11-17

申请号：US17764485

申请日：2020-09-30

Applicant: FASTLITE

Inventor： Nicolas FORGET

IPC: H01S3/00 ,  G02F1/39 ,  G02F1/35 ,  H01S3/06

Abstract: The present invention is notably directed to methods and systems for generating a CEP-stable optical pulse of optical carrier frequency fi from input optical pulses, the input optical pulses having an optical carrier frequency fp and pulse duration Tp. A birefringent medium, a non nonlinear medium, a dispersive optical system, a parametric device (DFG) are successively used to achieve the generation.

公开(公告)号：US20160033797A1

公开(公告)日：2016-02-04

申请号：US14781484

申请日：2014-03-31

Applicant: FASTLITE

Inventor： Pierre TOURNOIS ,  Nicolas FORGET

IPC: G02F1/13 ,  H01S3/00 ,  G02B6/10 ,  G02B21/00

CPC classification number: G02F1/1326 ,  G02B6/105 ,  G02B21/0084 ,  G02F1/0126 ,  G02F1/135 ,  G02F2203/26 ,  H01S3/0057

Abstract: A device for the temporal shaping of the amplitude and phase of ultrashort pulses, includes: a birefringent waveguide 1 of main axis Δ consisting of a nematic liquid crystal 2 located between a photoconductive material 3 and a substrate 4, two transparent electrodes, one of which 5 is located between the nematic liquid crystal 2 and the substrate 4, and the other 6 such that the photoconductive material 3 is located between the other electrode 6 and the nematic liquid crystal 2, and projection optics 7 for projecting a programmable optical mask 8 onto the photoconductive material 3.

Abstract translation: 用于对超短脉冲的幅度和相位进行时间成形的装置包括：主轴和Dgr的双折射波导1; 由位于光电导材料3和基板4之间的向列型液晶2组成，两个透明电极，其中一个位于向列液晶2和基板4之间，另一个6使得光电导材料3为 位于另一个电极6和向列液晶2之间，以及用于将可编程光学掩模8投影到光电导材料3上的投影光学器件7。