公开(公告)号：US20210268605A1

公开(公告)日：2021-09-02

申请号：US16972479

申请日：2019-05-31

Applicant: IMAGINE OPTIC

Inventor： Guillaume Gorju ,  Adam Ayeb ,  Xavier Levecq

IPC: B23K26/356 ,  B23K26/0622 ,  H01S5/026 ,  H01S5/50

Abstract: The present description relates, according to one aspect, to a high-peak-power laser pulse generation system (10) comprising at least one first light source (101) for emitting first nanosecond laser pulses (IL), a fiber device (110) for transporting said first laser pulses, comprising at least one first multimode fiber with a single core designed to receive said first laser pulses, and at least one first optical amplifier (120) arranged at the output of said fiber device for optically amplifying said first laser pulses in order to form said high-peak-power laser pulses.

公开(公告)号：US11735883B2

公开(公告)日：2023-08-22

申请号：US16972514

申请日：2019-05-31

Applicant: IMAGINE OPTIC

Inventor： Guillaume Gorju ,  Adam Ayeb ,  Xavier Levecq

IPC: H01S3/094 ,  H01S3/23 ,  G02B26/00 ,  H01S3/0941

CPC classification number: H01S3/094053 ,  G02B26/002 ,  H01S3/09415 ,  H01S3/094076 ,  H01S3/2316 ,  G02B26/007 ,  H01S2301/206

Abstract: The present description relates, according to one aspect, to a high-peak-power laser pulse generation system (10), comprising at least one first light source (101) for emitting first laser pulses (IL), a fiber device (110) for transporting said first laser pulses, comprising at least one first multimode fiber with a single core designed to receive said first laser pulses, and a module (102) for temporally shaping said first laser pulses, arranged upstream of the fiber device, configured so as to reduce the power spectral density of said pulses by reducing the temporal coherence.

公开(公告)号：US20230314823A1

公开(公告)日：2023-10-05

申请号：US18041143

申请日：2021-08-06

Applicant: IMAGINE OPTIC

Inventor： Guillaume Gorju ,  Xavier Levecq ,  Adam Ayeb ,  Fahem Boudries

IPC: G02B27/09

CPC classification number: G02B27/0944 ,  G02B27/0927 ,  G02B27/0916

Abstract: The aim of the present description is a system for generating high peak power laser pulses including a light source for emitting initial nanosecond laser pulses, a fiber-based device for conveying laser pulses, including at least one first multimode fiber with a single core, a diffractive optical element and an optical system that generates, from each of said initial laser pulses, a laser pulse, the spatial intensity distribution of which on an input face of said first multimode fiber includes a “top hat” component summed with a speckle pattern. The system further includes a spatial shaping module that transforms a first electric field into a second electric field formed by a sum of N components that are at least partially spatially incoherent with one another, N≥2, such that the contrast of said speckle pattern is limited compared to an initial contrast defined without a spatial shaping module.

公开(公告)号：US20210273397A1

公开(公告)日：2021-09-02

申请号：US16972514

申请日：2019-05-31

Applicant: IMAGINE OPTIC

Inventor： Guillaume Gorju ,  Adam Ayeb ,  Xavier Levecq

IPC: H01S3/094 ,  H01S3/0941 ,  H01S3/23

Abstract: The present description relates, according to one aspect, to a high-peak-power laser pulse generation system (10), comprising at least one first light source (101) for emitting first laser pulses (IL), a fiber device (110) for transporting said first laser pulses, comprising at least one first multimode fiber with a single core designed to receive said first laser pulses, and a module (102) for temporally shaping said first laser pulses, arranged upstream of the fiber device, configured so as to reduce the power spectral density of said pulses by reducing the temporal coherence.