EP 4111553 A1 20230104 - LASER SYSTEM COMPRISING AN OPTICAL SYSTEM FOR THE SPECTRAL BROADENING OF PULSED LASER RADIATION AND METHOD FOR THE SPECTRAL BROADENING OF PULSED LASER RADIATION
Title (en)
LASER SYSTEM COMPRISING AN OPTICAL SYSTEM FOR THE SPECTRAL BROADENING OF PULSED LASER RADIATION AND METHOD FOR THE SPECTRAL BROADENING OF PULSED LASER RADIATION
Title (de)
LASERSYSTEM MIT OPTISCHEM SYSTEM ZUR SPEKTRALEN VERBREITERUNG VON GEPULSTER LASERSTRAHLUNG UND VERFAHREN ZUR SPEKTRALEN VERBREITERUNG VON GEPULSTER LASERSTRAHLUNG
Title (fr)
SYSTÈME LASER COMPRENANT UN SYSTÈME OPTIQUE POUR L'ÉLARGISSEMENT SPECTRAL D'UN RAYONNEMENT LASER PULSÉ ET PROCÉDÉ D'ÉLARGISSEMENT SPECTRAL D'UN RAYONNEMENT LASER PULSÉ
Publication
Application
Priority
- DE 102020105015 A 20200226
- EP 2021054860 W 20210226
Abstract (en)
[origin: WO2021170815A1] The invention relates to an optical system (3) for increasing contrast of pulsed laser radiation (9) using a non-linear eliptical polarisation rotation, comprising: a first polarisation adjustment lens (19) for adjusting an elliptical polarisation state (17B) of the pulsed laser radiation (9); a multipass cell (5) comprising two opposing mirrors (25A, 25B), forming a concentric resonator, which is passed through multiple times by the pulsed laser radiation (9) forming a plurality of intermediate focus zones (29), wherein the multipass cell (5) is filled with a gas (5A), which has an optical non-linearity, which brings about an intensity-dependent rotation of an orientation of the eliptical polarisation state (17B) of the pulsed laser radiation (9), such that the multipass cell (5) outputs beam parts with differently orientated elliptical polarisation states on the basis of the intensity-dependent rotation; and an optical beam splitting system (41) for splitting the beam parts with differently orientated elliptical polarisation states.
IPC 8 full level
H01S 3/00 (2006.01); G02F 1/35 (2006.01); H01S 3/10 (2006.01)
CPC (source: EP US)
G02F 1/3503 (2021.01 - EP US); G02F 1/3511 (2013.01 - EP); H01S 3/005 (2013.01 - EP US); H01S 3/0057 (2013.01 - EP US); H01S 3/036 (2013.01 - US); H01S 3/08095 (2013.01 - US); H01S 3/094076 (2013.01 - US); H01S 3/10038 (2013.01 - EP US); H01S 3/10061 (2013.01 - US); H01S 3/2207 (2013.01 - US); G02F 1/3511 (2013.01 - US); H01S 3/0071 (2013.01 - EP); H01S 3/10061 (2013.01 - EP)
Citation (search report)
See references of WO 2021170814A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
WO 2021170815 A1 20210902; CN 115210967 A 20221018; CN 115210968 A 20221018; EP 4111553 A1 20230104; EP 4111554 A1 20230104; US 2022399695 A1 20221215; US 2022416493 A1 20221229; WO 2021170814 A1 20210902
DOCDB simple family (application)
EP 2021054863 W 20210226; CN 202180017146 A 20210226; CN 202180017240 A 20210226; EP 2021054860 W 20210226; EP 21708637 A 20210226; EP 21708638 A 20210226; US 202217889396 A 20220817; US 202217891157 A 20220819