Patents Assigned to Sino Point Technology, Ltd.
  • Mini fiber optic isolator
    Patent number: 7412132
    Abstract: A fiber optic array is miniaturized in a configuration that includes an input collimator, a first birefringence crystal, a waveplate, a Faraday rotator, a second birefringence crystal and a second collimator. The elements are aligned along a common optical axis. A light beam along the optical axis that is passed through the first collimator emerges off of the optical axis and through the remaining elements. It re-emerges from the fiber optic array on axis. The configuration provides substantial attenuation in a backward direction.
    Type: Grant
    Filed: September 19, 2005
    Date of Patent: August 12, 2008
    Assignee: Sino Point Technology, Ltd.
    Inventors: Hongdu Liu, Xiangzhi Lin, Yijun Li, Xiaoming Cui