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    OPTISCHER ÜBERHÖHUNGSRESONATOR
    3.
    发明公开
    OPTISCHER ÜBERHÖHUNGSRESONATOR 审中-公开
    OPTISCHERÜBERHÖHUNGSRESONATOR

    公开(公告)号：EP2907203A1

    公开(公告)日：2015-08-19

    申请号：EP13788902.8

    申请日：2013-10-09

    申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. ,  Friedrich-Schiller-Universität Jena ,  Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V. ,  GSI Helmholtzzentrum für Schwerionenforschung GmbH

    发明人： PUPEZA, Ioachim ,  KLENKE, Arno ,  LIMPERT, Jens ,  BREITKOPF, Sven ,  TÜNNERMANN, Andreas ,  EIDAM, Tino

    IPC分类号： H01S3/00

    CPC分类号： H01S3/0057

    摘要： The invention relates to an optical resonator (1), comprising at least one optical element (2), which reflects or transmits laser radiation, preferably pulsed laser radiation. The aim of the invention is to create a practical possibility of coupling pulsed laser radiation out of or into a resonator (1). The invention achieves said aim in that the optical element (2) can be switched, wherein in a first switching position the laser radiation is reflected or transmitted in such a way that that the laser radiation circulates in the resonator (1), and wherein in a second switching position the laser radiation is coupled out of the resonator (1) or the laser radiation emitted by an external radiation source is coupled into the resonator (1).

    摘要翻译： 本发明涉及一种光学谐振器（1），其包括至少一个反射或透射激光辐射的光学元件（2），优选脉冲激光辐射。 本发明的目的是创造将脉冲激光辐射耦合到谐振器（1）外或耦合到谐振器（1）中的实际可能性。 本发明的目的在于，可以切换光学元件（2），其中在第一切换位置中激光辐射以激光辐射在谐振器（1）中循环的方式被反射或透射，并且其中在 激光辐射耦合出谐振器（1）或由外部辐射源发射的激光辐射耦合到谐振器（1）中的第二切换位置。

    OPTISCHE ANORDNUNG
    6.
    发明公开
    OPTISCHE ANORDNUNG 审中-公开

    公开(公告)号：EP3394938A1

    公开(公告)日：2018-10-31

    申请号：EP16828936.1

    申请日：2016-12-20

    申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. ,  Friedrich-Schiller-Universität Jena

    发明人： MÜLLER, Michael ,  KIENEL, Marco ,  KLENKE, Arno ,  LIMPERT, Jens ,  TÜNNERMANN, Andreas

    IPC分类号： H01S3/00 ,  H01S3/23

    CPC分类号： H01S3/0057 ,  H01S3/2308 ,  H01S3/2383

    摘要： The invention relates to an optical arrangement having - a division element which divides an input beam consisting of a sequence of temporally equidistant light pulses into two spatially separate partial beams, - at least one optical element through which at least one of the partial beams propagates, and - at least one combination element which spatially superimposes the partial beams in an output beam. The problem addressed by the invention is that of showing a method for increasing the pulse energy of light pulses which is improved in comparison with the prior art. The invention solves this problem by virtue of the fact that the combination element superimposes a number of the temporally successive light pulses in a single light pulse in the output beam. The invention also relates to a method for increasing the pulse energy of light pulses.

    PULSED LIGHT SOURCE
    10.
    发明公开
    PULSED LIGHT SOURCE 有权
    脉冲光源

    公开(公告)号：EP2572413A1

    公开(公告)日：2013-03-27

    申请号：EP11724953.2

    申请日：2011-05-14

    申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. ,  Limpert, Jens ,  Tünnermann, Andreas

    发明人： LIMPERT, Jens ,  TÜNNERMANN, Andreas

    IPC分类号： H01S3/23 ,  H01S3/067 ,  H01S3/109

    CPC分类号： H01S3/0057 ,  H01S3/0078 ,  H01S3/0092 ,  H01S3/06754 ,  H01S3/2308

    摘要： It is an object of the present invention to provide a compact and low- cost system for generating ultra short high energy laser light pulses that does not use the known CPA scheme. The proposed approach is based on spectral filtering of laser light pulses of a mode locked laser source (1). The used mode locked laser source (1) can be of any kind as long as its filtered residual pulse bandwidth supports pulse durations longer than 20 ps and up to 1 ns. After filtering the laser light pulses are directly amplified in an amplification element (4) consisting of one or more amplification stages. At the same time or just after amplification the light pulses are spectrally broadened through a spectral broadening element (5), for example a fiber of suitably chosen core diameter and length to achieve a spectral bandwidth that is wide enough to support sub 10 ps pulses. Finally, the spectrally broadened laser light pulses are compressed by a compact dispersive element (6) consisting of one or more Bragg gratings or a grating pair.

    摘要翻译： 本发明的目的是提供一种紧凑且低成本的系统，用于产生不使用已知的CPA方案的超短高能激光脉冲。 所提出的方法基于锁模激光源（1）的激光脉冲的光谱滤波。 所使用的锁模激光源（1）可以是任何类型的，只要其滤波剩余脉冲带宽支持大于20ps且高达1ns的脉冲持续时间。 在过滤之后，激光光脉冲在由一个或多个放大级组成的放大元件（4）中被直接放大。 同时或放大后，光脉冲通过光谱增宽元件（5）（例如具有适当选择的芯直径和长度的光纤）在光谱上变宽，以获得足够宽的光谱带宽以支持小于10ps的脉冲。 最后，由一个或多个布拉格光栅或光栅对组成的紧凑色散元件（6）压缩光谱加宽的激光脉冲。