Patents by Inventor Lily Y. Pang

Lily Y. Pang 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).

  • Single wavelength semiconductor laser with grating-assisted dielectric waveguide coupler
    Patent number: 6487328
    Abstract: A grating (18) couples the waveguide region (36) of a semiconductor laser (11) to a dielectric waveguide (26). The waveguide region of the laser includes a mirror (15) at one end thereof and an absorber (19) at the other end thereof. The dielectric waveguide includes a reflector (24) therein to reflect a portion of the light coupled from the laser to the dielectric waveguide back into the laser waveguide region.
    Type: Grant
    Filed: March 30, 2001
    Date of Patent: November 26, 2002
    Assignee: Texas Instruments Incorporated
    Inventors: Jerome K. Butler, Lily Y. Pang, Gary A. Evans
  • Substrate stack construction for enhanced coupling efficiency of optical couplers
    Patent number: 6282219
    Abstract: A grating (461) assisted coupling of a semiconductor waveguide to a dielectric waveguide (451) is provided with one or more reflective stacks (330, 332, 334) to enhance the coupling efficiency. The glass or dielectric core (458) may be efficiently butt-coupled to the core of an optical fiber (470). A laser and semiconductor waveguide, reflective stacks coupling grating, and dielectric waveguide are integrated on a single substrate. Further, multiple lasers (410, 420, 430, 440) with differing lasing frequencies may be integrated and their outputs grating coupled into a single dielectric waveguide (450) for wavelength division multiplexing.
    Type: Grant
    Filed: August 12, 1998
    Date of Patent: August 28, 2001
    Assignee: Texas Instruments Incorporated
    Inventors: Jerome K. Butler, Lily Y. Pang, Philip A. Congdon
  • Single wavelength semiconductor laser with grating-assisted dielectric waveguide coupler
    Publication number: 20010012423
    Abstract: A grating (18) couples the waveguide region of a semiconductor laser (11) to a dielectric waveguide (21). The waveguide region of the laser includes a mirror (15) at one end thereof and an absorber (24) at the other end thereof. The dielectric waveguide includes a reflector therein to reflect a portion of the light coupled from the laser to the dielectric waveguide back into the laser waveguide region.
    Type: Application
    Filed: March 30, 2001
    Publication date: August 9, 2001
    Inventors: Jerome K. Butler, Lily Y. Pang, Gary A. Evans
  • Single wavelength semiconductor laser with grating-assisted dielectric waveguide coupler
    Patent number: 6236773
    Abstract: A grating (18) couples the waveguide region (36) of a semiconductor laser (11) to a dielectric waveguide (26). The waveguide region of the laser includes a mirror (15) at one end thereof and an absorber (19) at the other end thereof. The dielectric waveguide includes a reflector (24) therein to reflect a portion of the light coupled from the laser to the dielectric waveguide back into the laser waveguide region.
    Type: Grant
    Filed: December 15, 1998
    Date of Patent: May 22, 2001
    Assignee: Texas Instruments Incorporated
    Inventors: Jerome K. Butler, Lily Y. Pang, Gary A. Evans
  • Integrated laser and coupled waveguide
    Patent number: 6064783
    Abstract: A grating (461) coupling the output of a semiconductor laser (410) in a semiconductor waveguide to a dielectric waveguide (451) having a core (458) which may be efficiently butt-coupled to the core of an optical fiber (470); the laser and semiconductor waveguide, coupling grating, and dielectric waveguide are integrated on a single substrate. Further, multiple lasers (410, 420, 430, 440) with differing lasing frequencies may be integrated and their outputs grating coupled into a single dielectric waveguide (450) for wavelength division multiplexing.
    Type: Grant
    Filed: May 25, 1994
    Date of Patent: May 16, 2000
    Inventors: Philip A. Congdon, Lily Y. Pang, Gary A. Evans
  • Integrated laser and coupled waveguide
    Patent number: 5673284
    Abstract: A grating (461) coupling the output of a semiconductor laser (410) in a semiconductor waveguide to a dielectric waveguide (451) having a core (458) which may be efficiently butt-coupled to the core of an optical fiber (470); the laser and semiconductor waveguide, coupling grating, and dielectric waveguide are integrated on a single substrate. Further, multiple lasers (410, 420, 430, 440) with differing lasing frequencies may be integrated and their outputs grating coupled into a single dielectric waveguide (450) for wavelength division multiplexing.
    Type: Grant
    Filed: August 21, 1996
    Date of Patent: September 30, 1997
    Assignee: Texas Instruments Incorporated
    Inventors: Philip A. Congdon, Lily Y. Pang, Gary A. Evans
  • Micromechanical microwave switching
    Patent number: 5619061
    Abstract: Micromechanical microwave switches with both ohmic and capacitive coupling of rf lines and integration in multiple throw switches useful in microwave arrays.
    Type: Grant
    Filed: October 31, 1994
    Date of Patent: April 8, 1997
    Assignee: Texas Instruments Incorporated
    Inventors: Charles Goldsmith, Bradley M. Kanack, Tsen-Hwang Lin, Bill R. Norvell, Lily Y. Pang, Billy Powers, Jr., Charles Rhoads, David Seymour