公开(公告)号：US20180003893A1

公开(公告)日：2018-01-04

申请号：US15537340

申请日：2015-12-21

申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWAND TEN FORSCHUNG E.V.

发明人： Heinz-Gunter BACH

IPC分类号： G02B6/12 ,  G02F1/01

CPC分类号： G02B6/12 ,  G02B2006/12142 ,  G02F1/011 ,  G02F1/0121 ,  G02F1/2255 ,  G02F1/2257

摘要： An electro-optical modulator is provided. The modulator comprises a first and a second optical waveguide, at least one first capacitance, via which a voltage can be applied to a light-guiding region of the first optical waveguide, at least one second capacitance, via which a voltage can be applied to a light-guiding region of the second optical waveguide, an electrically conductive region, via which the first and second capacitances are electrically connected to one another, and a feed line to the electrically conductive region, via which feed line a DC voltage can be applied to the electrically conductive region, wherein the feed line is constituted such that it represents an electrical resistance connected in parallel with the second capacitance, and a compensation resistance connected in parallel with the first capacitance and serving for reducing transients in a voltage profile on the first and second capacitances during the operation of the modulator.

公开(公告)号：US20180151341A1

公开(公告)日：2018-05-31

申请号：US15568627

申请日：2016-05-04

申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWAND TEN FORSCHUNG E.V.

发明人： Martin JOOS ,  Matthias STIER ,  Stephan SCHERLE

IPC分类号： H01J49/04 ,  G01N33/18

CPC分类号： H01J49/0422 ,  G01N33/1826 ,  H01J49/0431 ,  H01J49/0495

摘要： The present disclosure relates to a method for analysis by mass spectrometer of liquid and/or gaseous samples, and to an apparatus for carrying out said method. A mass spectrometer is used which has a first flow element for liquid samples and a second flow element for gaseous samples.

公开(公告)号：US20140369637A1

公开(公告)日：2014-12-18

申请号：US14378942

申请日：2013-02-14

申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWAND TEN FORSCHUNG E.V.

发明人： Detlef Hoffmann

IPC分类号： G02F1/225 ,  G02F1/01

CPC分类号： G02F1/2255 ,  G02F1/011 ,  G02F1/025 ,  G02F1/0356 ,  G02F1/225 ,  G02F2001/0157 ,  G02F2001/212 ,  G02F2201/122 ,  G02F2201/127 ,  G02F2203/15

摘要： The invention relates to a Mach-Zehnder modulator comprising a first optical waveguide forming a first modulator arm and a second optical waveguide forming a second modulator arm of the Mach-Zehnder modulator, an electrode arrangement comprising a plurality of first waveguide electrodes for applying a voltage across the first optical waveguide and a plurality of second waveguide electrodes for applying a voltage across the second optical waveguide, at least one electrically conductive connecting element generating a short-circuit between at least one of the first waveguide electrodes and at least one of the second waveguide electrodes. The electrode arrangement is a travelling wave electrode arrangement further comprising a first and a second electrical line extending at least partially parallel to the first and second optical waveguide. The first and the second waveguide electrodes are connected to the first and second electrical lines via connecting structures.

摘要翻译： 本发明涉及包括形成第一调制器臂的第一光波导和形成Mach-Zehnder调制器的第二调制器臂的第二光波导的马赫 - 曾德调制器，包括多个用于施加电压的第一波导电极 跨越第一光波导和多个用于在第二光波导上施加电压的第二波导电极，至少一个导电连接元件在至少一个第一波导电极和第二波导电极中的至少一个之间产生短路 波导电极。 电极装置是行波电极装置，还包括至少部分平行于第一和第二光波导延伸的第一和第二电线。 第一和第二波导电极经由连接结构连接到第一和第二电线。

公开(公告)号：US20160320687A1

公开(公告)日：2016-11-03

申请号：US15032525

申请日：2014-10-28

申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWAND TEN FORSCHUNG E.V. ,  FRIEDRICH-SCHILLER-UNIVERSITÄT JENA

发明人： Thomas Gottschall ,  Jens Limpert ,  Andreas Tunnermann ,  Martin Baumgartl

IPC分类号： G02F1/39 ,  G02F1/35

CPC分类号： G02F1/39 ,  G02F1/3536 ,  G02F1/395 ,  G02F2201/02 ,  G02F2203/15

摘要： The invention relates to an apparatus (1) for producing short synchronous radiation pulses at different wavelengths, particularly to an optically parametric oscillator, comprising at least one pump radiation source (2), preferably a pump laser, for outputting radiation at a pump wavelength, and a resonator (3) having a wavelength-dependent effective resonator length, wherein the resonator (3) has a non-linear wavelength converter (4) for producing radiation at a first and a second wavelength; a dispersive element (5) having a strong wavelength-dependent delay characteristic; and a coupling-out element (6) for at least partially coupling-out the radiation from the resonator (3). In addition, the invention relates to a method for producing short radiation pulses by means of an apparatus (1), particularly an optically parametric oscillator.

摘要翻译： 本发明涉及一种用于产生不同波长的短同步辐射脉冲的装置（1），特别是涉及一种光学参量振荡器，包括用于输出泵浦波长的辐射的至少一个泵浦辐射源（2），优选为泵浦激光器， 以及具有波长相关的有效谐振器长度的谐振器（3），其中所述谐振器（3）具有用于产生第一和第二波长的辐射的非线性波长转换器（4） 具有强烈的波长相关延迟特性的色散元件（5）; 以及用于至少部分地耦合来自谐振器（3）的辐射的耦合输出元件（6）。 此外，本发明涉及一种借助于装置（1）产生短辐射脉冲的方法，特别是光学参数振荡器。