公开(公告)号：US20240225897A1

公开(公告)日：2024-07-11

申请号：US18609999

申请日：2024-03-19

Applicant: KERANOVA

Inventor： Sylvie NADOLNY ,  Emmanuel BAUBEAU

IPC: A61F9/008

CPC classification number: A61F9/0084 ,  A61F2009/00844 ,  A61F2009/0087 ,  A61F2009/00872 ,  A61F2009/00897

Abstract: The present invention concerns a cutting apparatus including a femtosecond laser, a shaping system downstream from the femtosecond laser, for forming a phase-modulated laser beam, an optical scanner downstream from the shaping system, and optical focusing system downstream from the optical scanner, a control unit for controlling the shaping system, the optical scanner and the optical focusing system, characterized in that the apparatus further comprises an optical coupler between the femtosecond laser and the shaping system, the optical coupler including a photonic crystal optical fiber for filtering the phase-modulated laser beam coming from the shaping system.

公开(公告)号：US20220257413A1

公开(公告)日：2022-08-18

申请号：US17627827

申请日：2020-07-17

Applicant: KERANOVA

Inventor： Emmanuel BAUBEAU ,  Sylvie NADOLNY

IPC: A61F9/008 ,  A61B18/20

Abstract: The present invention relates to a cutting device comprising: a laser source (1) for emitting an initial laser beam (11) in the form of pulses, a shaping system (2) positioned downstream of the femtosecond laser (1), for transforming the initial laser beam (11) into a single phase-modulated laser beam, an optical coupler (3) between the laser source (1) and the shaping system (2), the optical coupler (3) including an optical fibre (31), remarkable in that the cutting device further comprises a polarisation corrector (7) for modifying the polarisation of the initial laser beam (11) at an input end of the optical coupler (3) such that the polarisation of the laser beam at an output end of the optical coupler (3) corresponds to a desired reference polarisation.

公开(公告)号：US20210038429A1

公开(公告)日：2021-02-11

申请号：US16964234

申请日：2019-01-25

Applicant: KERANOVA

Inventor： Sylvie NADOLNY ,  Emmanuel BAUBEAU

IPC: A61F9/008

Abstract: The present invention concerns a cutting apparatus including a femtosecond laser (1), a shaping system (2) downstream from the femtosecond laser (1), for forming a phase-modulated laser beam, an optical scanner (4) downstream from the shaping system (2), and optical focusing system (5) downstream from the optical scanner (4), a control unit (6) for controlling the shaping system (2), the optical scanner (4) and the optical focusing system (5), characterized in that the apparatus further comprises an optical coupler (3) between the femtosecond laser (1) and the shaping system (2), the optical coupler (3) including a photonic crystal optical fiber for filtering the phase-modulated laser beam (21) coming from the shaping system (2).