Patents by Inventor Christian Koos
Christian Koos has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9559482Abstract: The present invention relates to a microresonator, in particular a full polymer microresonator, a method for producing the microresonator, and the use of the microresonator as a microlaser and/or molecular sensor.Type: GrantFiled: August 31, 2015Date of Patent: January 31, 2017Assignee: Karlsruher Institut für TechnologieInventors: Uwe Bog, Sebastian Köber, Christian Koos, Tobias Wienhold, Sentayehu Wondimu
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Patent number: 9417267Abstract: In an integrated optical circuit, light from a light source is polarized and coupled to a first and second strip waveguide. A waveguide coupling element couples the two optical signals from the two strip waveguides to different polarization modes of an optical fiber line. The optical fiber line is connected to a measuring head, which reflects the optical signal and in which a phase difference between the two optical partial signals is modulated in a magnetic field. In the waveguide coupling element, the reflected signal is split into two optical partial signals having the same polarization and the phase difference between the two partial signals is determined. A phase modulator device provides for closed-loop operation. Compared to fiber-optical concepts, the number of splices is reduced.Type: GrantFiled: February 8, 2013Date of Patent: August 16, 2016Assignee: Northrop Grumman Litef GmbHInventors: Georg Dorner, Sven Voigt, Christian Koos, Wolfgang Freude, Juerg Leuthold
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Publication number: 20160178983Abstract: Second-order optical nonlinear material arranged on a substrate, wherein the second-order optical nonlinear material comprises at least two different materials arranged in layers on the substrate. The layers are arranged on each other in a predetermined order based on the type of material and/or orientation of the layer. The predetermined order is chosen so that the layers of the at least two different materials possess no macroscopic centrosymmetry with respect to their material and/or orientation.Type: ApplicationFiled: December 3, 2014Publication date: June 23, 2016Inventors: Luca ALLOATTI, Andreas FROULICH, Christian KOOS, Sebastian KOEBER, Martin WEGENER
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Patent number: 9329027Abstract: A measuring unit is set up to determine a relative position and relative orientation between the measuring unit and an arrangement of at least three optical elements. The measuring unit comprises a length measuring device, which emits measuring beams at at least three locations spaced apart from one another, and at least one beam directing device set up to direct the measuring beams to optical elements of the arrangement. The beam directing device is controllable in order to guide at least one of the measuring beams to a plurality of optical elements of the arrangement in a time-sequential manner in order to carry out a plurality of length measuring operations in a time-sequential manner in such a manner that, in the plurality of length measuring operations, each measuring beam of the at least one measuring beam strikes precisely one of the optical elements. A total of six lengths are measured in this manner.Type: GrantFiled: July 26, 2011Date of Patent: May 3, 2016Assignee: Carl Zeiss AGInventors: Oliver Schmidt, Christian Koos, Bernd Spruck, Frank Höller
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Patent number: 9291446Abstract: The invention lies in the field of optical metrology and related to optical coherence tomography (OCT). In particular, the invention relates to an apparatus and a method for the depth-dependent adaptation of the dynamic range of an OCT system to the profile of the backscattered power to be measured. The dynamic range of the measuring method can therefore be decoupled from the dynamic range of the analog/digital converter used. The invention is used, in particular, in the characterization of strongly scattering or strongly absorbing biological or technical samples.Type: GrantFiled: January 10, 2013Date of Patent: March 22, 2016Assignee: KARLSRUHER INSTITUT FÜR TECHNOLOGIEInventors: Simon Schneider, Christian Koos, Wolfgang Freude, Juerg Leuthold
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Publication number: 20160064889Abstract: The present invention relates to a microresonator, in particular a full polymer microresonator, a method for producing the microresonator, and the use of the microresonator as a microlaser and/or molecular sensor.Type: ApplicationFiled: August 31, 2015Publication date: March 3, 2016Inventors: Uwe BOG, Sebastian KÖBER, Christian KOOS, Tobias WIENHOLD, Sentayehu WONDIMU
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Publication number: 20160046070Abstract: The present invention provides a process for producing an optical waveguide (20) more particularly for integrated photonic systems. This process comprises provision of polymerizable material; local polymerization of the polymerizable material to produce a multiplicity of polymerized structural elements (14); removal of the unpolymerized regions of the polymerizable material; and heating of the polymerized material more particularly above the glass transition temperature thereof in order to fuse the multiplicity of polymerized structural elements (14) together to form the optical waveguide (20).Type: ApplicationFiled: March 28, 2014Publication date: February 18, 2016Applicant: Karlsruher Institut fur TechnologieInventors: Timo Mappes, Sebastian Köber, Nicole Lindenmann, Christian Koos
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Patent number: 9034222Abstract: A method for making optical connections with optical waveguides includes mounting the optical waveguides or a device comprising the optical waveguides, on a component carrier. A partial region of the optical waveguides is embedded in a volume of resist material. Positions of the optical waveguides to be connected are detected with reference to a coordinate system using a measuring system. Favorable, three-dimensional geometries are determined for optical waveguide structures for connecting the optical waveguides to each other at predetermined connecting locations and the optical waveguide structure geometries are converted to a machine-readable dataset. The optical waveguide geometries in the volume of the resist material are three-dimensionally structured using a direct-writing lithography device operating on the basis of the machine-readable dataset.Type: GrantFiled: February 23, 2012Date of Patent: May 19, 2015Assignee: KARLSRUHE INSTITUT FUER TECHNOLOGIEInventors: Christian Koos, Wolfgang Freude, Nicole Lindenmann, Juerg Leuthold
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Publication number: 20150070685Abstract: The invention relates to a method and a corresponding apparatus for measuring distance and optionally speed, in particular for multiscale distance measurement.Type: ApplicationFiled: January 23, 2013Publication date: March 12, 2015Inventors: Christian Koos, Claudius Weimann, Juerg Leuthold
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Publication number: 20150049340Abstract: The invention lies in the field of optical metrology and relates to optical coherence tomography (OCT). In particular, the invention relates to an apparatus and a method for the depth-dependent adaptation of the dynamic range of an OCT system to the profile of the backscattered power to be measured. The dynamic range of the measuring method can therefore be decoupled from the dynamic range of the analogue/digital converter used. The invention is used, in particular, in the characterization of strongly scattering or strongly absorbing biological or technical samples.Type: ApplicationFiled: January 10, 2013Publication date: February 19, 2015Inventors: Simon Schneider, Christian Koos, Wolfgang Freude, Juerg Leuthold
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Patent number: 8903205Abstract: An optical arrangement includes a plurality of planar substrates with at least one planar integrated optical waveguide on each planar substrate. At least one optical waveguide structure has at least one end connected via an optical connecting structure to one of the planar integrated optical waveguides. The optical waveguide structure is positioned at least partly outside the integration plane for the planar integrated optical waveguide and a refractive index contrast between a core region and a cladding region of the optical waveguide structure is at least 0.01.Type: GrantFiled: February 23, 2012Date of Patent: December 2, 2014Assignee: Karlsruhe Institute of Technology (KIT)Inventors: Christian Koos, Wolfgang Freude, Nicole Lindenmann, Juerg Leuthold
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Patent number: 8681344Abstract: In an embodiment a method for position determination of an object in a spatial area is provided in which the object is illuminated with at least one light beam. The light beam does not cover the complete spatial area and is guided into a part of the spatial area in which the object is present depending on the position of the object. In another aspect a method for measuring a surface is provided.Type: GrantFiled: August 30, 2010Date of Patent: March 25, 2014Assignee: Carl Zeiss AGInventors: Bernd Spruck, Cristina Alvarez Diez, Simon Brattke, Lars-Christian Wittig, Stefan Richter, Enrico Geissler, Christian Koos, Oliver Schmidt, Frank Hoeller
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Publication number: 20130234698Abstract: In an integrated optical circuit, light from a light source is polarized and coupled to a first and second strip waveguide. A waveguide coupling element couples the two optical signals from the two strip waveguides to different polarization modes of an optical fiber line. The optical fiber line is connected to a measuring head, which reflects the optical signal and in which a phase difference between the two optical partial signals is modulated in a magnetic field. In the waveguide coupling element, the reflected signal is split into two optical partial signals having the same polarization and the phase difference between the two partial signals is determined. A phase modulator device provides for closed-loop operation. Compared to fiber-optical concepts, the number of splices is reduced.Type: ApplicationFiled: February 8, 2013Publication date: September 12, 2013Applicant: Northrop Grumman LITEF GmbHInventors: Georg Dorner, Sven Voigt, Christian Koos, Wofgang Freude, Juerg Leuthold
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Publication number: 20130221550Abstract: A method for making optical connections with optical waveguides includes mounting the optical waveguides or a device comprising the optical waveguides, on a component carrier. A partial region of the optical waveguides is embedded in a volume of resist material. Positions of the optical waveguides to be connected are detected with reference to a coordinate system using a measuring system. Favorable, three-dimensional geometries are determined for optical waveguide structures for connecting the optical waveguides to each other at predetermined connecting locations and the optical waveguide structure geometries are converted to a machine-readable dataset. The optical waveguide geometries in the volume of the resist material are three-dimensionally structured using a direct-writing lithography device operating on the basis of the machine-readable dataset.Type: ApplicationFiled: February 23, 2012Publication date: August 29, 2013Applicant: Karlsruher Institut fuer TechnologieInventors: Christian Koos, Wolfgang Freude, Nicole Lindenmann, Juerg Leuthold
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Publication number: 20130223788Abstract: An optical arrangement includes a plurality of planar substrates with at least one planar integrated optical waveguide on each planar substrate. At least one optical waveguide structure has at least one end connected via an optical connecting structure to one of the planar integrated optical waveguides. The optical waveguide structure is positioned at least partly outside the integration plane for the planar integrated optical waveguide and a refractive index contrast between a core region and a cladding region of the optical waveguide structure is at least 0.01.Type: ApplicationFiled: February 23, 2012Publication date: August 29, 2013Applicant: Karlsruher Institut fuer TechnologieInventors: Christian Koos, Wolfgang Freude, Nicole Lindenmann, Juerg Leuthold
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Publication number: 20130215435Abstract: A measuring unit set up to determine a relative position and relative orientation between the measuring unit and an arrangement of at least three optical elements. The measuring unit comprises a length measuring device, which emits measuring beams at at least three locations spaced apart from one another, and at least one beam directing device set up to direct the measuring beams to optical elements of the arrangement. The beam directing device is controllable in order to guide at least one of the measuring beams to a plurality of optical elements of the arrangement in a time-sequential manner in order to carry out a plurality of length measuring operations in a time-sequential manner in such a manner that, in the plurality of length measuring operations, each measuring beam of the at least one measuring beam strikes precisely one of the optical elements. A total of six lengths are measured in this manner.Type: ApplicationFiled: July 26, 2011Publication date: August 22, 2013Applicant: CARL ZEISS AGInventors: Oliver Schmidt, Christian Koos, Bernd Spruck, Frank Höller
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Publication number: 20120321240Abstract: An electro-optical device for processing an optical signal, comprises an electrode that is arranged and designed so that the optical signal at least partially intrudes the electrode when the optical signal is processed in the electro-optical device. An insulator is arranged adjacent to the electrode so that one face of the electrode contacts the insulator. A gate is arranged so that a voltage is applicable between the electrode and the gate such that a charge layer is induced on the face of the electrode that is contacting the insulator.Type: ApplicationFiled: April 30, 2012Publication date: December 20, 2012Inventors: Luca Alloatti, Juerg Leuthold, Wolfgang Freude, Christian Koos, Dietmar Korn, Robert Palmer
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Publication number: 20120218563Abstract: In an embodiment a method for position determination of an object (25) in a spatial area (28) is provided in which the object (25) is illuminated with at least one light beam (22, 27). The light beam (22, 27) does not cover the complete spatial area (28) and is guided into a part of the spatial area in which the object (25) is present depending on the position of the object (25). In another aspect a method for measuring a surface is provided.Type: ApplicationFiled: August 30, 2010Publication date: August 30, 2012Inventors: Bernd Spruck, Cristina Alvarez Diez, Simon Brattke, Lars-Christian Wittig, Stefan Richter, Enrico Geissler, Christian Koos, Oliver Schmidt, Frank Hoeller
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Patent number: 8081851Abstract: A high-index contrast waveguide component is presented, which is based on the fast changing of the transmission properties of an optical waveguide by applying electric voltages, or by embossing electric currents. The waveguide consists of a high-refractive waveguide core surrounded by a low-refractive surrounding material, which at least area by area has electro-optical properties. By applying a voltage to completely or partially optically transparent electrodes, an electric field is generated having a strong overlap with the optical mode, being in interaction with it, and therefore changing the transmission properties of the waveguide. The transparent electrodes or supply line areas are laminar, connected at low resistance with conductor paths of high conductivity by means of structures continually repeated along the propagation direction. Thus, it is possible for example to very fast load the capacity being effective between the electrodes, and to thus achieve a high electric band width.Type: GrantFiled: September 14, 2007Date of Patent: December 20, 2011Assignee: Karlsruher Institut fur TechnologieInventors: Christian Koos, Jurg Leuthold, Wolfgang Freude, Jan Michael Brosi
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Publication number: 20100021124Abstract: A high-index contrast waveguide component is presented, which is based on the fast changing of the transmission properties of an optical waveguide by applying electric voltages, or by embossing electric currents. The waveguide consists of a high-refractive waveguide core surrounded by a low-refractive surrounding material, which at least area by area has electro-optical properties. By applying a voltage to completely or partially optically transparent electrodes, an electric field is generated having a strong overlap with the optical mode, being in interaction with it, and therefore changing the transmission properties of the waveguide. The transparent electrodes or supply line areas are laminar, connected at low resistance with conductor paths of high conductivity by means of structures continually repeated along the propagation direction. Thus, it is possible for example to very fast load the capacity being effective between the electrodes, and to thus achieve a high electric band width.Type: ApplicationFiled: September 14, 2007Publication date: January 28, 2010Inventors: Christian Koos, Jurg Leuthold, Wolfgang Freude, Jan Michael Brosi