Patents by Inventor Eng-Ho Soo

Eng-Ho Soo 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).

  • Small form factor transmitter optical subassembly (TOSA) having functionality for controlling the temperature, and methods of making and using the TOSA
    Patent number: 7738517
    Abstract: The invention is directed to an OSA having a TO-can-type configuration that is relatively low-cost to manufacture and that has functionality for monitoring and controlling the temperature of the laser diode without the need for additional pins or an increase in the size of the OSA. Thus, the OSA typically includes four or five pins at most. These features of the invention are achieved by providing a thermal control circuit, a temperature sensor and a heater that are integrated along with a laser output power monitor photodiode into the submount assembly substrate.
    Type: Grant
    Filed: October 29, 2007
    Date of Patent: June 15, 2010
    Assignee: Avago Technologies Fiber IP (Singapore) Pte. Ltd.
    Inventors: Frederick Miller, Eng-Ho Soo, Heng Seng Alvin Low, Ronald Kaneshiro
  • SMALL FORM FACTOR TRANSMITTER OPTICAL SUBASSEMBLY (TOSA) HAVING FUNCTIONALITY FOR CONTROLLING THE TEMPERATURE, AND METHODS OF MAKING AND USING THE TOSA
    Publication number: 20090110014
    Abstract: The invention is directed to an OSA having a TO-can-type configuration that is relatively low-cost to manufacture and that has functionality for monitoring and controlling the temperature of the laser diode without the need for additional pins or an increase in the size of the OSA. Thus, the OSA typically includes four or five pins at most. These features of the invention are achieved by providing a thermal control circuit, a temperature sensor and a heater that are integrated along with a laser output power monitor photodiode into the submount assembly substrate.
    Type: Application
    Filed: October 29, 2007
    Publication date: April 30, 2009
    Inventors: Frederick Miller, Eng-Ho Soo, Heng Seng Alvin Low, Ronald Kaneshiro