Patents by Inventor Diarmuid Byrne

Diarmuid Byrne 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).

  • LASER DEVICE, A LIGHT SIGNAL GENERATING DEVICE, AND AN OPTICAL RESONATOR AND A METHOD FOR PRODUCING LIGHT
    Publication number: 20100290495
    Abstract: A laser device (1) comprises a ridge waveguide (2) comprising an upper cladding layer (5) and a lower cladding layer (6), between which is located an active layer (7). A ridge (8) formed in the upper cladding layer (5) defines the lateral width of a light guiding region (9) in the active layer (7). The ridge (8) is formed so that a portion (13) of the light guiding region (9) extends above the active layer (7) into the ridge (8). A plurality of lateral reflecting slots (15) extend laterally across the ridge (8) and extend into the ridge (8) to a depth sufficient to extend into the portion (13) of the light guiding region (9) which extends into the ridge (8) in order that the reflectivity of each lateral slot (15) is in the order of 2%.
    Type: Application
    Filed: September 20, 2007
    Publication date: November 18, 2010
    Applicants: THE PROVOST, FELLOWS AND SCHOLARS OF THE COLLEGE OF THE HOLY AND UNDIVEDED TRINITY, UNIVERSITY COLLEGE CORK, NATIONAL UNIVERSITY OF IRELAND, CORK
    Inventors: John F. Donegan, Wei-Hua Guo, Qiao-Yin Lu, Diarmuid Byrne, Brian Corbett, Paul Martin Lambkin, Brendan John Roycroft, Jan-Peter Engelstaedter, Frank Peters