Patents by Inventor Chao-Yi TAI

Chao-Yi TAI 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).

  • Patent number: 10177523
    Abstract: An optical fiber apparatus and a method of recovering radiation-induced-attenuation (RIA) onto a rare-earth-doped optical fiber under irradiation are provided in this disclosure. A light source is coupled to a rare-earth doped optical fiber. The light source emits a combination of mode locked pulsed light and non-mode locked quasi-continuous-wave light. The mode locked pulsed light are used to recover RIA onto the rare-earth doped optical fiber in real time, and the non-mode locked light are used to pump the rare-earth doped optical fiber as a gain medium. Each pulsed duration of the mode locked pulsed light is much shorter than operation duration of the non-mode locked light, such that an instantaneous power of the mode locked pulsed light exceeds a saturated pumping power required for the rare-earth doped optical fiber, so as to effectively elevate the core temperature of rare-earth doped fiber to achieve a confined photo-annealed recovery of RIA onto rare-earth doped fibers.
    Type: Grant
    Filed: September 14, 2015
    Date of Patent: January 8, 2019
    Assignee: NATIONAL APPLIED RESEARCH LABORATORIES
    Inventors: Sheng Hsiung Chang, Ren-Young Liu, Chii-Chang Chen, Chao-Yi Tai
  • Patent number: 9851545
    Abstract: The present invention discloses a method for non-fluorescence higher harmonic generation ground state depletion super-resolution microscopy, it includes the following steps: providing an organic material unit, focusing excitation light and ground state depletion light, generating a higher harmonic signal, performing ground state depletion and performing microscopic imaging. With the implementation of the present invention, the stimulated electrons of the organic material remains majorly on the singlet (S1) state or the triplet (T1) state, instead of the ground (S0) state, to provide modulation of the spatial distribution of the non-fluorescence signal, and make STED microscopy applicable to non-fluorescence signals to promote the resolution of the images.
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: December 26, 2017
    Assignee: NATIONAL CENTRAL UNIVERSITY
    Inventors: Szu-Yu Chen, Jui-Fen Chang, Chao-Yi Tai, Hao-Hao Wu
  • Publication number: 20170077668
    Abstract: An optical fiber apparatus and a method of recovering radiation-induced-attenuation (RIA) onto a rare-earth-doped optical fiber under irradiation are provided in this disclosure. A light source is coupled to a rare-earth doped optical fiber. The light source emits a combination of mode locked pulsed light and non-mode locked quasi-continuous-wave light. The mode locked pulsed light are used to recover RIA onto the rare-earth doped optical fiber in real time, and the non-mode locked light are used to pump the rare-earth doped optical fiber as a gain medium. Each pulsed duration of the mode locked pulsed light is much shorter than operation duration of the non-mode locked light, such that an instantaneous power of the mode locked pulsed light exceeds a saturated pumping power required for the rare-earth doped optical fiber, so as to effectively elevate the core temperature of rare-earth doped fiber to achieve a confined photo-annealed recovery of RIA onto rare-earth doped fibers.
    Type: Application
    Filed: September 14, 2015
    Publication date: March 16, 2017
    Inventors: SHENG HSIUNG CHANG, REN-YOUNG LIU, CHII-CHANG CHEN, CHAO-YI TAI
  • Publication number: 20170017068
    Abstract: The present invention discloses a method for non-fluorescence higher harmonic generation ground state depletion super-resolution microscopy, it includes the following steps: providing an organic material unit, focusing excitation light and ground state depletion light, generating a higher harmonic signal, performing ground state depletion and performing microscopic imaging. With the implementation of the present invention, the stimulated electrons of the organic material remains majorly on the singlet (S1) state or the triplet (T1) state, instead of the ground (S0) state, to provide modulation of the spatial distribution of the non-fluorescence signal, and make STED microscopy applicable to non-fluorescence signals to promote the resolution of the images.
    Type: Application
    Filed: September 8, 2015
    Publication date: January 19, 2017
    Inventors: Szu-Yu CHEN, Jui-Fen CHANG, Chao-Yi TAI, Hao-Hao WU
  • Publication number: 20120288803
    Abstract: A manufacturing device of optical deflectors and a manufacturing method of the same are revealed. The manufacturing device includes a movable work platform, a substrate, a lens and a femtosecond laser source. The substrate is disposed on the movable work platform and is coated with a photoresist polymer film. The lens is arranged at one side of the movable work platform. The femtosecond laser source produces a femtosecond laser that passes through the lens and projects onto the photoresist polymer film at a non-focal position of the lens so as to produce an optical deflector. The optical deflector is produced only by the femtosecond laser projected onto the photoresist polymer film at the non-focal position. Thus the production efficiency of the optical deflector is improved.
    Type: Application
    Filed: December 9, 2011
    Publication date: November 15, 2012
    Applicant: National Central University
    Inventor: Chao-Yi TAI
  • Publication number: 20100136489
    Abstract: A manufacturing device and a manufacturing method for polymer waveguide devices are revealed. The manufacturing device includes a substrate coated with a photoresist polymer membrane and set on a work platform, a femtosecond laser emitting onto the photoresist polymer membrane, and a lens arranged between the femtosecond laser and the substrate. The polymer waveguide devices are obtained by the femtosecond laser emitting onto the photoresist polymer membrane. Without complicated manufacturing processes, the production efficiency of the polymer waveguide devices is increased.
    Type: Application
    Filed: March 16, 2009
    Publication date: June 3, 2010
    Inventors: Chao-Yi TAI, Jia-Wei Tzeng