Patents by Inventor Swee Chuan Tjln

Swee Chuan Tjln 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).

  • Optical sensor, sensor arrangement and method for sensing
    Patent number: 10444072
    Abstract: Various embodiments provide an optical sensor having an optical source, a grating arrangement optically coupled to the optical source to receive a source optical signal from the optical source, the grating arrangement including a chirped FBG having a defined spectral profile, wherein, in response to a first change in at least one parameter interacting with the chirped FBG, the defined spectral profile is shifted in a first direction relative to a reference spectral profile, and the grating arrangement is configured, in response thereto, to generate a first output optical signal corresponding to the first change, and wherein, in response to a second change in the at least one parameter interacting with the chirped FBG, the defined spectral profile is shifted in a second direction relative to the reference spectral profile, and the grating arrangement is configured, in response thereto, to generate a second output optical signal corresponding to the second change.
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: October 15, 2019
    Assignee: Nanyang Technological University
    Inventors: Yaowen Yang, Muneesh Maheshwari, Swee Chuan Tjln, Tanmay Chaturvedi
  • OPTICAL SENSOR, SENSOR ARRANGEMENT AND METHOD FOR SENSING
    Publication number: 20180274979
    Abstract: Various embodiments provide an optical sensor having an optical source, a grating arrangement optically coupled to the optical source to receive a source optical signal from the optical source, the grating arrangement including a chirped FBG having a defined spectral profile, wherein, in response to a first change in at least one parameter interacting with the chirped FBG, the defined spectral profile is shifted in a first direction relative to a reference spectral profile, and the grating arrangement is configured, in response thereto, to generate a first output optical signal corresponding to the first change, and wherein, in response to a second change in the at least one parameter interacting with the chirped FBG, the defined spectral profile is shifted in a second direction relative to the reference spectral profile, and the grating arrangement is configured, in response thereto, to generate a second output optical signal corresponding to the second change.
    Type: Application
    Filed: March 16, 2018
    Publication date: September 27, 2018
    Inventors: Yaowen Yang, Muneesh Maheshwari, Swee Chuan Tjln, Anand Krishna Asundi, Tanmay Chaturvedi