Patents by Inventor Maurice A. Chin

Maurice A. Chin 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).

  • Article comprising a strained layer quantum well laser
    Patent number: 5212704
    Abstract: A GaAs-based self-aligned laser with emission wavelength in the approximate wavelength regime 0.87-1.1 .mu.m is disclosed. The laser is a strained layer QW laser and is readily manufacturable. Preferred embodiments of the inventive laser do not comprise Al-containing semiconductor alloy. Lasers according to the invention can for instance be used advantageously as 0.98 .mu.m pump sources for Er-doped fiber amplifiers.
    Type: Grant
    Filed: November 27, 1991
    Date of Patent: May 18, 1993
    Assignee: AT&T Bell Laboratories
    Inventors: Young-Kai Chen, Maurice A. Chin, Jenn-Ming Kuo, Arthur M. Sergent, Ming-Chiang Wu
  • Devices incorporating phonon filters
    Patent number: 4349796
    Abstract: An acoustic superlattice of alternating layers of different acoustic impedance is disclosed as a filter for high frequency phonons. Applications discussed include spectrometers, acoustic imaging apparatus, and cavity resonators.
    Type: Grant
    Filed: December 15, 1980
    Date of Patent: September 14, 1982
    Assignee: Bell Telephone Laboratories, Incorporated
    Inventors: Maurice A. Chin, Venkatesh Narayanamurti, Horst L. Stormer