Patents by Inventor Michael Radunsky

Michael Radunsky 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).

  • Continuous wavelength tunable laser source with optimum orientation of grating and gain medium
    Patent number: 8467430
    Abstract: An external cavity laser assembly (10) that generates a light beam (12) includes a gain medium (14) and a diffraction grating (24). The gain medium (14) has a growth direction (14C), a fast axis (14A), a first facet (34A), and a second facet (34B) that is spaced apart from the first facet (34A). The gain medium (14) emits from both facets (34A) (34B). Further, a beam polarization (30) of the light beam (32) emitting from the second facet (34B) is perpendicular to the growth direction (14C) and the fast axis (14A). The grating (24) includes a plurality of grating ridges (24A) that are oriented parallel to the beam polarization (30). Moreover, each of the grating ridges (24A) can have a substantially rectangular shaped cross-sectional profile.
    Type: Grant
    Filed: September 20, 2011
    Date of Patent: June 18, 2013
    Assignee: Daylight Solutions, Inc.
    Inventors: David P. Caffey, Michael Radunsky, Edeline Fotheringham, Michael Pushkarsky
  • CONTINUOUS WAVELENGTH TUNABLE LASER SOURCE WITH OPTIMUM ORIENTATION OF GRATING AND GAIN MEDIUM
    Publication number: 20120076160
    Abstract: An external cavity laser assembly (10) that generates a light beam (12) includes a gain medium (14) and a diffraction grating (24). The gain medium (14) has a growth direction (14C), a fast axis (14A), a first facet (34A), and a second facet (34B) that is spaced apart from the first facet (34A). The gain medium (14) emits from both facets (34A) (34B). Further, a beam polarization (30) of the light beam (32) emitting from the second facet (34B) is perpendicular to the growth direction (14C) and the fast axis (14A). The grating (24) includes a plurality of grating ridges (24A) that are oriented parallel to the beam polarization (30). Moreover, each of the grating ridges (24A) can have a substantially rectangular shaped cross-sectional profile.
    Type: Application
    Filed: September 20, 2011
    Publication date: March 29, 2012
    Inventors: David P. Caffey, Michael Radunsky, Edeline Fotheringham, Michael Pushkarsky