Patents by Inventor Kai-Ning Ku

Kai-Ning Ku 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).

  • Publication number: 20230168433
    Abstract: An optical element includes a substrate, a first insulating layer, a first optical waveguide layer, a first edge coupler, and a first micro-optical element. The first insulating layer is disposed on the substrate. The first optical waveguide layer is disposed on the first insulating layer to transmit a light beam. The first edge coupler is disposed on the first insulating layer and coupled to an end of the first optical waveguide layer. The first micro-optical element is disposed on the substrate and includes a first inclined surface. The first micro-optical element is located within a first groove formed between the substrate, the first insulating layer, the first optical waveguide layer, and the first edge coupler. The light beam is sequentially transmitted from the first optical waveguide layer to the first edge coupler, emitted from the first edge coupler, and reflected by the first inclined surface to an optical fiber connector.
    Type: Application
    Filed: November 28, 2022
    Publication date: June 1, 2023
    Applicant: Industrial Technology Research Institute
    Inventors: Kai-Ning Ku, Ming-Hsien Wu
  • Patent number: 9977192
    Abstract: An optical receiver including a photodetector and a waveguide is provided. The photodetector includes a plurality of photosensitive regions arranged in an array. The waveguide is disposed on the photodetector and includes a plurality of gratings, a plurality of optical channels, and a plurality of light-deflection elements. The gratings are respectively adapted to collect light beams incident on the waveguide at different angles. The optical channels are adapted to propagate the light beams collected by the gratings. The light-deflection elements are disposed on transmission paths of the light beams propagating in the optical channels and are located above the photosensitive regions. The light-deflection elements are adapted to propagate the light beams propagating in the optical channels to the photosensitive regions. An optical transceiver is also provided.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: May 22, 2018
    Assignee: Industrial Technology Research Institute
    Inventors: Chia-Hsin Chao, Yen-Hsiang Fang, Chun-Hsing Lee, Kai-Ning Ku
  • Patent number: 9606294
    Abstract: An optical component optically coupled to an optical fiber includes a substrate and an edge-emitting laser. The substrate includes an accommodating cavity, a plurality of openings, a waveguide, an optical coupler and a plurality of pads. The waveguide and the optical coupler are distributed outside the accommodating cavity. The openings are distributed at the bottom surface of the accommodating cavity and the pads are located at the bottom of the openings. The optical coupler is optically coupled to an end of the waveguide and includes a light-incident surface. The edge-emitting laser is embedded in the accommodating cavity and includes a light-emitting layer and a plurality of bumps located in the openings and electrically connected to the pads. The ratio of the level height difference between the light-emitting layer and the optical coupler to the thickness of the optical coupler ranges from 0 to 0.5.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: March 28, 2017
    Assignee: Industrial Technology Research Institute
    Inventors: Kai-Ning Ku, Chih-Lin Wang, Shang-Chun Chen
  • Publication number: 20170031102
    Abstract: An optical component optically coupled to an optical fiber includes a substrate and an edge-emitting laser. The substrate includes an accommodating cavity, a plurality of openings, a waveguide, an optical coupler and a plurality of pads. The waveguide and the optical coupler are distributed outside the accommodating cavity. The openings are distributed at the bottom surface of the accommodating cavity and the pads are located at the bottom of the openings. The optical coupler is optically coupled to an end of the waveguide and includes a light-incident surface. The edge-emitting laser is embedded in the accommodating cavity and includes a light-emitting layer and a plurality of bumps located in the openings and electrically connected to the pads. The ratio of the level height difference between the light-emitting layer and the optical coupler to the thickness of the optical coupler ranges from 0 to 0.5.
    Type: Application
    Filed: July 29, 2016
    Publication date: February 2, 2017
    Applicant: Industrial Technology Research Institute
    Inventors: Kai-Ning Ku, Chih-Lin Wang, Shang-Chun Chen
  • Publication number: 20170031104
    Abstract: An optical receiver including a photodetector and a waveguide is provided. The photodetector includes a plurality of photosensitive regions arranged in an array. The waveguide is disposed on the photodetector and includes a plurality of gratings, a plurality of optical channels, and a plurality of light-deflection elements. The gratings are respectively adapted to collect light beams incident on the waveguide at different angles. The optical channels are adapted to propagate the light beams collected by the gratings. The light-deflection elements are disposed on transmission paths of the light beams propagating in the optical channels and are located above the photosensitive regions. The light-deflection elements are adapted to propagate the light beams propagating in the optical channels to the photosensitive regions. An optical transceiver is also provided.
    Type: Application
    Filed: July 29, 2016
    Publication date: February 2, 2017
    Applicant: Industrial Technology Research Institute
    Inventors: Chia-Hsin Chao, Yen-Hsiang Fang, Chun-Hsing Lee, Kai-Ning Ku
  • Patent number: 8447152
    Abstract: The present invention relates to a waveguide coupling device with properties of forward coupling and backward coupling as well as a manufacturing method thereof, the waveguide coupling device comprises: a substrate, at least one inverted taper coupling structure, an intermediate layer, and at least one three-dimensional taper coupling structure. Wherein one end of the three-dimensional taper coupling structure is adopted for connecting to an external optical fiber, so as to couple the optical wave propagating in the optical fiber; Moreover, by way of the specific coupling sequence of (three-dimensional taper coupling structure)-(intermediate layer)-(inverted taper coupling structure), the optical wave may be efficiently coupled into, be confined in, and ultimately propagates in the inverted taper coupling structure connecting to waveguide devices.
    Type: Grant
    Filed: August 10, 2011
    Date of Patent: May 21, 2013
    Assignee: National Tsing Hua University
    Inventors: Ming-Chang Lee, Kai-Ning Ku
  • Publication number: 20120008896
    Abstract: The present invention relates to an integrate optics for multiplexer transceiver module, comprising: a substrate, a multiplexer, a first waveguide coupling device, a second waveguide coupling device and a third waveguide coupling device. In the present invention, the semiconductor materials and the semiconductor process are used to integrate variety of optical devices on a single semiconductor substrate (chip) by way of modular design and miniaturization, so as to carry out an integrated optics communication framework with high efficiency and low cost. Moreover, in the present invention, a plurality of optical receivers are integrated on the substrate by means of flip-chip bonding, so that, not only the objective of integrating the optical devices is accomplished but also the intensity of laser optical signal is increased.
    Type: Application
    Filed: June 10, 2011
    Publication date: January 12, 2012
    Applicant: NATIONAL TSING-HUA UNIVERSITY
    Inventors: Ming-Chang Lee, Kai-Ning Ku, Chung-Yung Wang, Kuo-Chung Huang, Tsung-Chi Hsu, Chung-Hsin Fu, Lin-Yu Tai