公开(公告)号：EP2807710A1

公开(公告)日：2014-12-03

申请号：EP13712150.5

申请日：2013-01-28

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

发明人： EIDAM, Timo ,  LIMPERT, Jens ,  KLENKE, Arno ,  TÜNNERMANN, Andreas ,  ROTHHARDT, Jan ,  HÄDRICH, Steffen ,  SEISE, Enrico

IPC分类号： H01S3/094 ,  H01S3/11

CPC分类号： H01S3/005 ,  H01S3/0057 ,  H01S3/0092 ,  H01S3/06754 ,  H01S3/094026 ,  H01S3/094076 ,  H01S3/1103 ,  H01S3/1618

摘要： The invention relates to a device for producing light pulses, comprising a pulsed light source (5) which emits a sequence of light pulses, an enhancement resonator (7) into which the light pulses emitted by the pulsed light source (5) are coupled, and a modulator (9) which couples at least one light pulse (10) circulating in the enhancement resonator (7) out of the enhancement resonator (7). The aim of the invention is to provide a device that is improved with respect to the prior art, by means of which device especially powerful light pulses can be produced. Said aim is achieved in that the pulsed light source (5) operates in a burst mode in such a manner that the pulsed light source (5) emits a sequence of pulse packets (6), which each comprise two or more consecutive light pulses. The invention further relates to a device for producing light pulses, comprising a pulsed light source (5) which emits a sequence of light pulses, an optical amplifying medium (17) which is optically pumped by the light pulses and produces useful radiation (21) as a result, and a multi-pass assembly (19) which ensures that the useful radiation (21) passes through the optical amplifying medium (17) several times. The pulsed light source (5) operates in a burst mode in such a manner that the pulsed light source (5) emits a sequence of pulse packets (6) that each comprise two or more consecutive light pulses.

公开(公告)号：EP2406674A1

公开(公告)日：2012-01-18

申请号：EP10714168.1

申请日：2010-03-12

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

发明人： LIMPERT, Jens ,  RÖSER, Fabian ,  EIDAM, Timo ,  JÁUREGUI MISAS, César ,  TÜNNERMANN, Andreas

IPC分类号： G02B6/02 ,  H01S3/067

CPC分类号： G02B6/02347 ,  G02B6/02009 ,  G02B6/02333 ,  G02B6/02352 ,  G02B6/02361 ,  G02B6/02366 ,  G02B6/14 ,  H01S3/06729

摘要： The invention relates to an optical fiber as an optical waveguide for the single-mode operation. The present invention proposes a fiber having a microstructure, by which the propagation of modes of a higher order are selectively suppressed in the optical waveguide. At the same time, the propagation of transversal modes of a higher order is dampened more strongly than the propagation of the fundamental modes of the optical waveguide.