公开(公告)号：EP1604435A2

公开(公告)日：2005-12-14

申请号：EP04716625.1

申请日：2004-03-03

Applicant: Fastlite

Inventor： KAPLAN, Daniel ,  OKSENHENDLER, Thomas ,  TOURNOIS, Pierre

IPC: H01S3/106

CPC classification number: H01S3/235 ,  H01S3/08022 ,  H01S3/1068 ,  H01S2301/08

Abstract: The invention relates to a method and device for controlling the amplitude of the wavelength spectrum of ultra-short light pulses emitted by multipass laser amplifiers. According to the invention, a programmable acousto-optic device (8) is introduced into a laser cavity of a multipass amplifier (10), in order to modify slightly the amplitude of the spectrum of the light pulse with each passage, owing to a collinear or quasi-collinear interaction between the light pulse and a sound beam, the result from the filtering being used on the non-diffracted direct light beam from the acousto-optic interaction.

公开(公告)号：EP2510392A1

公开(公告)日：2012-10-17

申请号：EP10801624.7

申请日：2010-12-03

Applicant: Fastlite

Inventor： KAPLAN, Daniel ,  TOURNOIS, Pierre

IPC: G02B6/293 ,  G02B5/18 ,  H01S3/00

CPC classification number: G02B6/29394 ,  G02B5/18 ,  G02B5/1814 ,  G02B6/29392 ,  H01S3/0057

Abstract: The invention relates to a device for compensating the temporary scattering applied to the generation of ultra-short light pulses, said device including two identical and parallel optical diffraction gratings RA, RB and two identical prisms PA, PB that are placed inside the above-mentioned optical diffraction gratings RA, RB, given that the above-mentioned optical diffraction gratings RA, RB are volume phase gratings that function, during transmission, on the principle of Bragg diffraction. The outer surfaces FeA, FeB of the above-mentioned prisms PA, PB are parallel to the above-mentioned optical diffraction gratings RA, RB, and the inner surfaces FiA, FiB of the above-mentioned prisms PA, PB are parallel therebetween.

公开(公告)号：EP1604435B8

公开(公告)日：2010-02-17

申请号：EP04716625.1

申请日：2004-03-03

Applicant: Fastlite

Inventor： KAPLAN, Daniel ,  OKSENHENDLER, Thomas ,  TOURNOIS, Pierre

IPC: H01S3/106

CPC classification number: H01S3/235 ,  H01S3/08022 ,  H01S3/1068 ,  H01S2301/08