Patents by Inventor Gerhard Weiser

Gerhard Weiser 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).

  • Electro-optic modulator using multiple quantum well structure having stark-effect quantum Barriers and non-stark-effect quantum barriers sandwiched therebetween
    Patent number: 5550670
    Abstract: An optoelectronic semiconductor component (1) for modulating a supplied light beam is described, where the optoelectronic semiconductor component has a pin-structure (2, 3, 4). The invention provides that M semiconductor structures with carriers localized in at least one dimension (Q1-Q20; CB1-CB10) are arranged in at least two groups (G1-G10), where the semiconductor structures with carriers localized in at least one dimension belonging to one group (G1-G10), are separated by barriers (CB1-CB10), which essentially allow Starkladder transitions between the individual semiconductor structures (Q1-Q20; CB1-CB10) of each group (G1-G10), and the individual groups (G1-G10) of such coupled semiconductor structures (Q1-Q20; CB1-CB10) are separated by other barriers (B1-B11), which essentially prevent Stark-ladder transitions between the active layers (Q1-Q20) of the semiconductor structures (Q1-Q20; CB1-CB10) of a group (G1-G10) and an active layer (Q1-Q20) of another group.
    Type: Grant
    Filed: April 22, 1994
    Date of Patent: August 27, 1996
    Assignee: Alcatel N.V.
    Inventors: Erich Zielinski, Gerhard Weiser