Patents Assigned to Cheetah Omni, LLC
  • Patent number: 6795605
    Abstract: An optical switch element is described, which includes a fixed layer disposed outwardly from a substrate and a movable mirror assembly disposed outwardly from the fixed layer. The moveable mirror assembly is operable to move relative to the fixed layer responsive to a voltage applied to the movable mirror assembly. In a particular embodiment, the movable mirror assembly includes an inner strip spaced apart from the fixed layer by a first distance and an outer strip disposed approximately adjacent to the inner strip and spaced apart from the fixed layer by a second distance which is greater than the first distance. The optical transmission of the optical switch element changes depending on the position of the movable mirror assembly.
    Type: Grant
    Filed: August 20, 2003
    Date of Patent: September 21, 2004
    Assignee: Cheetah Omni, LLC
    Inventors: Mohammed N. Islam, Amos Kuditcher
  • Patent number: 6721475
    Abstract: In one aspect of the invention, a gain equalizer comprises a wavelength division demultiplexer operable to separate one or more communication bands into a plurality of wavelengths and an array of phase shifter stages. Each phase shifter stage comprises a micro-electro-optic system (MEMS) device comprising a moveable mirror layer operable to receive a first copy of an input signal from a beam splitter and to reflect the first copy of the input signal for combination with a second copy of the input signal at an output to form an output signal. The moveable mirror layer is displaceable in a substantially piston-like motion to introduce a phase shift between the first and second signal copies at the output, the amplitude of the output signal varying depending on the displacement of the moveable mirror layer.
    Type: Grant
    Filed: December 22, 2000
    Date of Patent: April 13, 2004
    Assignee: Cheetah Omni, LLC
    Inventors: Mohammed N. Islam, Amos Kuditcher
  • Patent number: 6721473
    Abstract: In one aspect of the invention, an optical switching element includes a variable blazed grating operable to receive and reflect one or more input signals while the grating remains in a first position and to receive and diffract one or more input signals while the grating remains in a second position. The switching element further includes a first circulator operable to receive from the variable blazed grating a first output signal traveling approximately along the path of an input signal to the grating but in an approximately opposite direction to that input signal, and to redirect the first output signal from the path of the input signal.
    Type: Grant
    Filed: February 2, 2001
    Date of Patent: April 13, 2004
    Assignee: Cheetah Omni, LLC
    Inventors: Mohammed N. Islam, Amos Kuditcher
  • Patent number: 6611366
    Abstract: An optical switch element is described, which includes a fixed layer disposed outwardly from a substrate and a movable mirror assembly disposed outwardly from the fixed layer. The moveable mirror assembly is operable to move relative to the fixed layer responsive to a voltage applied to the movable mirror assembly. In a particular embodiment, the movable mirror assembly includes an inner strip spaced apart from the fixed layer by a first distance and an outer strip disposed approximately adjacent to the inner strip and spaced apart from the fixed layer by a second distance which is greater than the first distance. The optical transmission of the optical switch element changes depending on the position of the movable mirror assembly.
    Type: Grant
    Filed: April 22, 2002
    Date of Patent: August 26, 2003
    Assignee: Cheetah Omni, LLC
    Inventors: Mohammed N. Islam, Amos Kuditcher
  • Patent number: 6597491
    Abstract: An optical switch element is described, which includes a fixed layer disposed outwardly from a substrate and a movable mirror assembly disposed outwardly from the fixed layer. The moveable mirror assembly is operable to move relative to the fixed layer responsive to a voltage applied to the movable mirror assembly. In a particular embodiment, the movable mirror assembly includes an inner strip spaced apart from the fixed layer by a first distance and an outer strip disposed approximately adjacent to the inner strip and spaced apart from the fixed layer by a second distance which is greater than the first distance. The optical transmission of the optical switch element changes depending on the position of the movable mirror assembly.
    Type: Grant
    Filed: August 22, 2002
    Date of Patent: July 22, 2003
    Assignee: Cheetah Omni, LLC
    Inventors: Mohammed N. Islam, Amos Kuditcher