Patents by Inventor Amit Singh Nagra

Amit Singh Nagra 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).

  • OPTOELECTRONIC DEVICE
    Publication number: 20180101082
    Abstract: An optoelectronic device and method of making the same. The device comprising: a substrate; an epitaxial crystalline cladding layer, on top of the substrate; and an optically active region, above the epitaxial crystalline cladding layer; wherein the epitaxial crystalline cladding layer has a refractive index which is less than a refractive index of the optically active region, such that the optical power of the optoelectronic device is confined to the optically active region.
    Type: Application
    Filed: December 6, 2017
    Publication date: April 12, 2018
    Inventors: Guomin Yu, Hooman Abediasl, Damiana Lerose, Amit Singh Nagra, Pradeep Srinivasan, Haydn Frederick Jones, Andrew George Rickman, Aaron John Zilkie
  • OPTOELECTRONIC SWITCH
    Publication number: 20170366884
    Abstract: A switch module and optoelectronic switch incorporating the same. The optoelectronic switch includes an N-dimensional array of switch modules arranged in a topology in which each switch module is a member of N sub-arrays, the sub-arrays defined with reference to the coordinates of the constituent switch modules, and wherein all of the members of each sub-array are connected by an active switch, which in some embodiments may be an optical active switch or an electronic active switch.
    Type: Application
    Filed: July 7, 2017
    Publication date: December 21, 2017
    Inventors: Andrew Rickman, Nathan Farrington, Amit Singh Nagra
  • Optoelectronic switch
    Patent number: 9706276
    Abstract: A switch module and optoelectronic switch incorporating the same. The optoelectronic switch includes an N-dimensional array of switch modules arranged in a topology in which each switch module is a member of N sub-arrays, the sub-arrays defined with reference to the coordinates of the constituent switch modules, and wherein all of the members of each sub-array are connected by an active switch, which in some embodiments may be an optical active switch or an electronic active switch.
    Type: Grant
    Filed: March 16, 2016
    Date of Patent: July 11, 2017
    Assignee: Rockley Photonics Limited
    Inventors: Andrew Rickman, Nathan Farrington, Amit Singh Nagra
  • OPTICAL MODULATORS
    Publication number: 20170155452
    Abstract: An optoelectronic device. The optoelectronic device operable to provide a PAM-N modulated output, the device comprising: M optical modulators, M being an integer greater than 1, the M optical modulators being arranged in a cascade, the device being configured to operate in N distinct transmittance states, as a PAM-N modulator, wherein, in each transmittance state of the N distinct transmittance states, each of the M optical modulators has applied to it a respective control voltage equal to one of: a first voltage or a second voltage.
    Type: Application
    Filed: February 10, 2017
    Publication date: June 1, 2017
    Inventors: Amit Singh Nagra, Hooman Abediasl, Joyce Kai See Poon, Zheng Yong
  • OPTOELECTRONIC SWITCH
    Publication number: 20170117966
    Abstract: An L-dimensional optoelectronic switch for transferring an optical signal from an input device to an output device, the optoelectronic switch includes: a plurality of leaf switches, each having a radix R, and arranged in an L-dimensional array, in which each dimension has a respective size R, (1=1, 2, . . . , L), each leaf switch having an associated L-tuple of co-ordinates (x1, . . .
    Type: Application
    Filed: December 23, 2016
    Publication date: April 27, 2017
    Inventors: Andrew George RICKMAN, Nathan FARRINGTON, Amit Singh NAGRA, Cyriel Johan Agnes MINKENBERG, Thomas Pierre SCHRANS
  • OPTOELECTRONIC SWITCH
    Publication number: 20170041691
    Abstract: A switch module and optoelectronic switch incorporating the same. The optoelectronic switch includes an N-dimensional array of switch modules arranged in a topology in which each switch module is a member of N sub-arrays, the sub-arrays defined with reference to the coordinates of the constituent switch modules, and wherein all of the members of each sub-array are connected by an active switch, which in some embodiments may be an optical active switch or an electronic active switch.
    Type: Application
    Filed: March 16, 2016
    Publication date: February 9, 2017
    Inventors: Andrew Rickman, Nathan Farrington, Amit Singh Nagra