Patents by Inventor Tony Albrecht

Tony Albrecht 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).

  • Publication number: 20070145388
    Abstract: A surface emitting semiconductor component (1) with an emission direction which comprises a semiconductor body (2). The semiconductor body comprises a plurality of active regions (4a, 4b) which are suitable for the generation of radiation and are arranged in a manner spaced apart from one another, a frequency-selective element (6) being formed in the semiconductor body.
    Type: Application
    Filed: December 5, 2006
    Publication date: June 28, 2007
    Applicant: Osram Opto Semiconductors GmbH
    Inventors: Marc Philippens, Tony Albrecht, Martin Muller, Wolfgang Schmid
  • Patent number: 7224710
    Abstract: An optically pumped semiconductor laser apparatus having a vertical emitter (2) and having one pump laser (5) for optically pumping the vertical emitter (2), with the vertical emitter (2) and the pump laser (5) being monolithically integrated. The pump laser (5) and the vertical emitter (2) each have a radiation-emitting zone (3, 6). During operation, the temperature of the radiation-emitting zone (6) of the pump laser (5) is lower than the temperature of the radiation-emitting zone (3) of the vertical emitter (2).
    Type: Grant
    Filed: September 19, 2003
    Date of Patent: May 29, 2007
    Assignee: Osram GmbH
    Inventors: Wolfgang Schmid, Tony Albrecht
  • Patent number: 7209506
    Abstract: An optically pumped radiation-emitting semiconductor device with a surface-emitting quantum well structure (10), which has at least one quantum layer (11), and an active layer (8) for generating pump radiation (9) for optically pumping the quantum well structure (10), which is arranged parallel to the quantum layer (11). The semiconductor device has at least one emission region (12), in which the quantum well structure (10) is optically pumped, and at least one pump region (13). The quantum well structure (10) and the active pump layer (8) extend over the pump region (13) and over the emission region (12) of the semiconductor device, and the pump radiation (9) is coupled into the emission region (12) in the lateral direction.
    Type: Grant
    Filed: July 30, 2004
    Date of Patent: April 24, 2007
    Assignee: Osram Opto Semiconductors GmbH
    Inventor: Tony Albrecht
  • Publication number: 20070041414
    Abstract: A semiconductor laser, contains at least one absorbing layer (8) in its laser resonator, said absorbing layer reducing the transmission TRes of the laser radiation (10) in the laser resonator for the purpose of decreasing the sensitivity of the semiconductor laser to disturbances created by radiation (9) fed back into the laser resonator. This reduces fluctuations in the output power due to fed-back radiation (9).
    Type: Application
    Filed: February 23, 2004
    Publication date: February 22, 2007
    Applicant: OSRAM OPTO SEMICONDUCTORS GMBH
    Inventors: Tony Albrecht, Peter Brick, Marc Philippens, Glenn-Yves Plaine
  • Patent number: 7075124
    Abstract: A radiation-sensitive semiconductor body which has at least one radiation-absorbent active area (2) between at least two contact layers (6, 7) and which receives electromagnetic radiation in a wavelength range between ?1 and ?2 where ?2>?1. A filter layer (5) is arranged between the active area (2) and a radiation input surface (9). The active area (2) detects electromagnetic radiation at a wavelength below ?2. The filter layer (5) absorbs electromagnetic radiation at a wavelength below ?1, and passes electromagnetic radiation at a wavelength above ?1.
    Type: Grant
    Filed: July 30, 2004
    Date of Patent: July 11, 2006
    Assignee: Osram Opto Semiconductors GmbH
    Inventors: Tony Albrecht, Peter Brick, Glenn-Yves Plaine, Marc Philippens
  • Patent number: 7050471
    Abstract: A semiconductor laser with a semiconductor body (1), which has a periodic arrangement of cutouts (2) or in which a period arrangement of semiconductor regions is formed, so that the radiation generated by the semiconductor laser is not capable of propagating within this periodic arrangement, the resonator (3) of the semiconductor laser being omitted from the periodic arrangement in the lateral direction. Furthermore, an optically pumped semiconductor device is disclosed with a vertical emitter (13) comprising a quantum well structure (7), which is pumped by means of a semiconductor laser of this type or into which the pump radiation of a pump radiation source is coupled by means of a corresponding waveguide (22).
    Type: Grant
    Filed: March 1, 2004
    Date of Patent: May 23, 2006
    Assignee: Osram Opto Semiconductors GmbH
    Inventors: Peter Brick, Tony Albrecht, Norbert Linder, Wolfgang Schmid
  • Patent number: 7023894
    Abstract: An optically pumped semiconductor laser device having a substrate (12) having a first main area (14) and a second main area (16), a pump laser (30) and a vertically emitting laser (40) optically pumped by the pump laser (30) being arranged on the first main area (14). The first main area (14) of the substrate (12) is patterned and has first regions (20) situated at a higher level and also second regions (18) situated at a lower level. The pump laser (30) is arranged on a region (20) situated at a higher level of the substrate (12), and the vertically emitting laser (40) is arranged above intermediate layers (50, 30?) on a region (18) situated at a lower level of the substrate (12). The height difference (?) between the first (20) and second (18) regions of the substrate (12) and the layer thickness of the intermediate layers (50, 30?) is chosen in such a way that the pump laser (30) and the vertically emitting laser (40) are situated at the same level.
    Type: Grant
    Filed: October 10, 2003
    Date of Patent: April 4, 2006
    Assignee: Osram Opto Semiconductors GmbH
    Inventor: Tony Albrecht
  • Publication number: 20060039437
    Abstract: The invention is directed to an optically pumped surface-emitting semiconductor laser device having at least one radiation-generating quantum well structure and at least one pump radiation source for optically pumping the quantum well structure, whereby the pump radiation source comprises an edge-emitting semiconductor structure. The radiation-generating quantum well structure and the edge-emitting semiconductor structure are epitaxially grown on a common substrate. A very efficient and uniform optical pumping of the radiation-generating quantum well structure is advantageously possible with this monolithically produced semiconductor laser device. Methods for manufacturing inventive semiconductor laser devices are also specified.
    Type: Application
    Filed: October 12, 2005
    Publication date: February 23, 2006
    Inventors: Tony Albrecht, Norbert Linder, Johann Luft
  • Publication number: 20060018354
    Abstract: A surface emitting semiconductor laser device, having at least one monolithically integrated pump radiation source (20), in which the pump radiation source (20) has at least one edge emitting semiconductor structure (9) that is suitable for emission of electromagnetic radiation whose intensity profile transversely with respect to the emission direction (z) of the semiconductor structure follows a predeterminable curve. Such a surface emitting semiconductor laser device emits electromagnetic radiation having a particularly good beam quality.
    Type: Application
    Filed: May 31, 2005
    Publication date: January 26, 2006
    Applicant: Osram Opto Semiconductors GmbH
    Inventors: Tony Albrecht, Peter Brick
  • Patent number: 6979842
    Abstract: An optoelectronic component with an epitaxial semiconductor layer sequence having an active zone that emits electromagnetic radiation, and at least one electrical contact region having at least one radiation-transmissive electrical contact layer, which contains ZnO and is electrically conductively connected to an outer semiconductor layer. The contact layer is provided with watertight material in such a way that it is substantially protected against moisture.
    Type: Grant
    Filed: December 31, 2003
    Date of Patent: December 27, 2005
    Assignee: Osram Opto Semiconductors GmbH
    Inventors: Wilhelm Stein, Ralph Wirth, Tony Albrecht
  • Patent number: 6973113
    Abstract: An optically pumped semiconductor laser device having a substrate (1) having a first main area (2) and a second main area (3), with at least one pump laser (11) being arranged on the first main area (2). The semiconductor laser device comprises a vertically emitting laser (4) having a resonator having a first mirror (9) being arranged on the side of the first main area (2) and a second mirror (20) being arranged on the side of the second main area (3) of the substrate (1).
    Type: Grant
    Filed: May 23, 2003
    Date of Patent: December 6, 2005
    Assignee: OSRAM GmbH
    Inventors: Tony Albrecht, Norbert Linder, Wolfgang Schmid
  • Publication number: 20050259700
    Abstract: In an optically pumpable surface-emitting semiconductor laser device with a vertical emitter with a radiation-generating active layer, at least one modulation radiation source for modulating the output power of the surface-emitting semiconductor device is provided. The modulation radiation source is formed by an edge-emitting semiconductor structure with an active layer, and which is disposed such that during operation it radiates into the radiation-generating active layer of the vertical emitter. This produces an easily modulatable surface-emitting laser source of high power and high beam quality. A pumping radiation source for optically pumping the active layer of the vertical emitter is preferably provided in the semiconductor laser device.
    Type: Application
    Filed: July 22, 2005
    Publication date: November 24, 2005
    Inventors: Werner Spath, Johann Luft, Stephan Lutgen, Norbert Linder, Tony Albrecht, Ulrich Steegmuller
  • Patent number: 6954479
    Abstract: The invention is directed to an optically pumped surface-emitting semiconductor laser device having at least one radiation-generating quantum well structure and at least one pump radiation source for optically pumping the quantum well structure, whereby the pump radiation source comprises an edge-emitting semiconductor structure. The radiation-generating quantum well structure and the edge-emitting semiconductor structure are epitaxially grown on a common substrate. A very efficient and uniform optical pumping of the radiation-generating quantum well structure is advantageously possible with this monolithically produced semiconductor laser device. Methods for manufacturing inventive semiconductor laser devices are also specified.
    Type: Grant
    Filed: April 2, 2001
    Date of Patent: October 11, 2005
    Assignee: OSRAM GmbH
    Inventors: Tony Albrecht, Norbert Linder, Johann Luft
  • Publication number: 20050207461
    Abstract: A radiation-emitting semiconductor component comprising a semiconductor body (3) with a first active zone (1) and a second active zone (2) arranged above the first active zone, the first active zone being provided for generating a radiation having a first wavelength ?1 (11) and the second active zone being provided for generating a radiation having a second wavelength ?2 (22), the radiation having the first wavelength ?1 being coherent and the radiation having the second wavelength ?2 being incoherent.
    Type: Application
    Filed: January 31, 2005
    Publication date: September 22, 2005
    Applicant: Osram Opto Semiconductors GmbH
    Inventors: Marc Philippens, Tony Albrecht
  • Patent number: 6947460
    Abstract: In an optically pumpable surface-emitting semiconductor laser device with a vertical emitter with a radiation-generating active layer, at least one modulation radiation source for modulating the output power of the surface-emitting semiconductor device is provided. The modulation radiation source is formed by an edge-emitting semiconductor structure with an active layer, and which is disposed such that during operation it radiates into the radiation-generating active layer of the vertical emitter. This produces an easily modulatable surface-emitting laser source of high power and high beam quality. A pumping radiation source for optically pumping the active layer of the vertical emitter is preferably provided in the semiconductor laser device.
    Type: Grant
    Filed: March 28, 2003
    Date of Patent: September 20, 2005
    Assignee: Osram GmbH
    Inventors: Werner Späth, Johann Luft, Stephan Lutgen, Norbert Linder, Tony Albrecht, Ulrich Steegmüller
  • Publication number: 20050110026
    Abstract: A radiation-emitting-and-receiving semiconductor component has at least a first semiconductor layer construction (1) for emitting radiation and a second semiconductor layer construction (2) for receiving radiation, which are arranged in a manner spaced apart from one another on a common substrate (3) and have at least one first contact layer (4). The first semiconductor layer construction (1) has an electromagnetic-radiation-generating region (5) arranged between p-conducting semiconductor layers (6) and n-conducting semiconductor layers (7) of the first semiconductor layer construction (1). A second contact layer (8) is at least partially arranged on that surface of the first semiconductor layer construction (1) which is remote from the substrate (3) and that of the second semiconductor layer construction (2).
    Type: Application
    Filed: September 28, 2004
    Publication date: May 26, 2005
    Applicant: Osram Opto Semiconductors GmbH
    Inventors: Glenn-Yves Plaine, Tony Albrecht, Peter Brick, Marc Philippens
  • Publication number: 20050098788
    Abstract: A surface emitting semiconductor laser chip contains a semiconductor body, which has, at least partly, a crystal structure with principal crystal directions, a radiation exit face, and side faces laterally delimiting the semiconductor body. At least one of the side faces is disposed obliquely with respect to the principal crystal directions.
    Type: Application
    Filed: July 31, 2003
    Publication date: May 12, 2005
    Inventors: Werner Plass, Christian Jung, Tony Albrecht, Udo Streller
  • Publication number: 20050058171
    Abstract: An optically pumped radiation-emitting semiconductor device with a surface-emitting quantum well structure (10), which has at least one quantum layer (11), and an active layer (8) for generating pump radiation (9) for optically pumping the quantum well structure (10), which is arranged parallel to the quantum layer (11). The semiconductor device has at least one emission region (12), in which the quantum well structure (10) is optically pumped, and at least one pump region (13). The quantum well structure (10) and the active pump layer (8) extend over the pump region (13) and over the emission region (12) of the semiconductor device, and the pump radiation (9) is coupled into the emission region (12) in the lateral direction.
    Type: Application
    Filed: July 30, 2004
    Publication date: March 17, 2005
    Applicant: Osram Opto Semiconductors GmbH
    Inventor: Tony Albrecht
  • Publication number: 20050056904
    Abstract: A radiation-sensitive semiconductor body which has at least one radiation-absorbent active area (2) between at least two contact layers (6, 7) and which receives electromagnetic radiation in a wavelength range between ?1 and ?2 where ?2>?1. A filter layer (5) is arranged between the active area (2) and a radiation input surface (9). The active area (2) detects electromagnetic radiation at a wavelength below ?2. The filter layer (5) absorbs electromagnetic radiation at a wavelength below ?1, and passes electromagnetic radiation at a wavelength above ?1.
    Type: Application
    Filed: July 30, 2004
    Publication date: March 17, 2005
    Applicant: Osram Opto Semiconductors GmbH
    Inventors: Tony Albrecht, Peter Brick, Glenn-Yves Plaine, Marc Philippens
  • Publication number: 20050008056
    Abstract: The invention is directed to an optically pumped surface-emitting semiconductor laser device having at least one radiation-generating quantum well structure and at least one pump radiation source for optically pumping the quantum well structure, whereby the pump radiation source comprises an edge-emitting semiconductor structure. The radiation-generating quantum well structure and the edge-emitting semiconductor structure are epitaxially grown on a common substrate. A very efficient and uniform optical pumping of the radiation-generating quantum well structure is advantageously possible with this monolithically produced semiconductor laser device. Methods for manufacturing inventive semiconductor laser devices are also specified.
    Type: Application
    Filed: July 29, 2004
    Publication date: January 13, 2005
    Inventors: Tony Albrecht, Norbert Linder, Johann Luft