Patents by Inventor Gerome Avelange

Gerome Avelange 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).

  • Optical coupler with high degree of isolation
    Patent number: 5404414
    Abstract: An optical coupler comprises at least one optical fiber (1), one laser (2), one photodiode (3), one focusing lens (30) for focusing on the fiber and one plate (41) which reflects the rays coming from the fiber (1) towards the photodiode (3). In order to prevent a ray sent out by the laser (2) from returning to the photodiode (3) after reflection on the input diopter (4) of the lens (30), the optical axis is broken at the height of this diopter (4) by means of a prism (5). The reflected rays do not return to the plate (41).
    Type: Grant
    Filed: March 5, 1993
    Date of Patent: April 4, 1995
    Assignee: Thomson Hybrides
    Inventors: Gerome Avelange, Philippe Lamache
  • Method for the alignment of the optical axes of an optical fiber and of an optoelectronic component, and device obtained by this method
    Patent number: 5210811
    Abstract: A method for the alignment of an optical fiber on the optical axis of a light-emitting or light-receiving semiconductor component uses only line contacts between the metal parts. With the component being fixed to a base provided with two grooves, and the fiber being provided with a sleeve, the position of the fiber is determined in polar coordinates by at least two plates which lie in grooves and form angles that are adjustable. The positions are fixed by laser soldering when the alignment is obtained. The device can be applied to optical heads.
    Type: Grant
    Filed: October 18, 1991
    Date of Patent: May 11, 1993
    Assignee: Thomson Hybrides
    Inventors: Gerome Avelange, Alain Tournereau
  • Device for the alignment of an optical fiber and an optoelectronic component
    Patent number: 5177807
    Abstract: The disclosure relates to the field of optical components in which a fiber is aligned on a laser, LED or similar device. The fiber is fixed into a sleeve clamped by a "keyhole" shaped clamp. The optical component is fixedly joined to a base in which a slot is parallel to the optical axis of the component. The clips of the clamp are introduced into the slot which is designed to give three degrees of liberty. When the alignment is obtained in dynamic operation, the parts are fixed by solders made by laser. The device can be applied to optical heads.
    Type: Grant
    Filed: October 18, 1991
    Date of Patent: January 5, 1993
    Assignee: Thomson Hybrides
    Inventors: Gerome Avelange, Alain Tournereau
  • Optical head capable of being fitted into a hybrid circuit
    Patent number: 5123067
    Abstract: An optic head designed to be fitted into a hybrid circuit. This optic head includes at least one optoelectronic semiconductor assembly and one optic fiber in alignment. In order to attach it to a hybrid circuit, the elements are all mounted on a metal wafer which serves as a reference plane. The fiber is brazed or bonded to the wafer by means of a metal tube which supports a lens. Optic head has a second optoelectronic assembly also fixed to the metal wafer, a dichroic mirror or a semi-reflecting plate sends the light beam back to the second assembly. A filter may be provided to improve the separation of the light beams. The present invention finds application to multiplexers, demultiplexers, duplexers and optic couplers.
    Type: Grant
    Filed: November 13, 1990
    Date of Patent: June 16, 1992
    Assignee: Thomson Hybrides
    Inventors: Gerome Avelange, Thierry Gouvernel