公开(公告)号：WO2019145172A1

公开(公告)日：2019-08-01

申请号：PCT/EP2019/050782

申请日：2019-01-14

Applicant: FORSCHUNGSVERBUND BERLIN E.V.

Inventor： SAHM, Alexander ,  BLUME, Gunnar ,  PASCHKE, Katrin

IPC: H01S5/0687 ,  H01S5/00 ,  H01S5/022 ,  H01S5/024 ,  H01S5/50

CPC classification number: H01S5/0687 ,  H01S3/1303 ,  H01S5/005 ,  H01S5/0064 ,  H01S5/0071 ,  H01S5/02216 ,  H01S5/0222 ,  H01S5/02284 ,  H01S5/02415 ,  H01S5/50

Abstract: Das Lasermodul (LM) umfasst ein Gehäuse und, in dem Gehäuse, eine kühlbare Laserquelle (LQ) zur Erzeugung eines Laserstrahls und eine mit Gas befüllte Gaszelle (GZ) zur Stabilisierung einer Linienbreite und/oder einer Wellenlänge des Laserstrahls.Das Gehäuse ist ausgebildet, vor Kondenswasser zu schützen, und die Laserquelle (LQ) umfasst einen Masteroszillator (MO), einen optischen Verstärker (PA)und einen zwischen dem Masteroszillator (MO) und dem optischen Verstärker (PA)angeordneten optischer Isolator (IS1). Das Lasermodul ermöglicht in robuster Weise einen miniaturisierten Laser mit stabiler Wellenlänge und/oder Linienbreite zur Verfügung zu stellen.

公开(公告)号：EP2235590A1

公开(公告)日：2010-10-06

申请号：EP08866308.3

申请日：2008-12-23

Applicant: Forschungsverbund Berlin E.V.

Inventor： GÜTHER, Reiner ,  BLUME, Gunnar ,  EPPICH, Bernd ,  FIEBIG, Christian ,  PASCHKE, Katrin ,  UEBERNICKEL, Mirko

IPC: G02F1/37

CPC classification number: G02F1/37 ,  G02F2203/28

Abstract: The present invention relates to a device for doubling the frequency of laser radiation. It is an object of the invention to indicate a device for doubling the frequency of the radiation of a diode laser, which radiation is not rotationally symmetrical, with different radiation quality parameters in the vertical and lateral directions, the device having an optimum conversion efficiency or a higher conversion efficiency than the devices of the prior art. The inventive device has a laser, the irradiation of which, emitted perpendicularly to the direction of the light emitted, has a vertical divergence in a vertical direction (y) and an associated vertical radiation quality parameter (I) and a lateral divergence in the lateral direction (x) perpendicular thereto and an associated lateral radiation quality parameter (II), a nonlinear medium (1) with a quadratic nonlinear susceptibility and a focusing optical system, which focuses the laser beam in the nonlinear medium, wherein the focusing optical system is constructed in such a manner, that the focusing convergence corresponds to the radiation of the laser, focused into the medium (1), is scaled down in the vertical direction (y) of a focusing convergence, optimum for a strictly coherent radiation, by a factor, which results from the radiation quality parameter (I) along the vertical direction (y), in that this parameter is diminished by 1, then multiplied with a vertical add-on factor between 0.2 and 5 and, after that, increased by 1, and that the focusing convergence corresponds to the radiation of the laser, focused into the median (1) in a lateral direction (x) of a focusing convergence, optimum for a strictly coherent radiation, is diminished by a factor, which arises along the lateral direction (x) from the radiation quality parameter (II), in that this parameter is diminished by 1, then multiplied with a lateral add-on between 0.2 and 0.5 and, after that, increased by 1, the length of the nonlinear medium remain

公开(公告)号：EP2235590B1

公开(公告)日：2018-07-11

申请号：EP08866308.3

申请日：2008-12-23

Applicant: Forschungsverbund Berlin E.V.

Inventor： GÜTHER, Reiner ,  BLUME, Gunnar ,  EPPICH, Bernd ,  FIEBIG, Christian ,  PASCHKE, Katrin ,  UEBERNICKEL, Mirko

IPC: G02F1/37

CPC classification number: G02F1/37 ,  G02F2203/28