Patents by Inventor Abdullah Demir

Abdullah Demir 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).

  • Bidirectional long cavity semiconductor laser for improved power and efficiency
    Patent number: 10490967
    Abstract: The invention relates to bi-directional long-cavity semiconductor lasers for high power applications having two AR coated facets (2AR) to provide an un-folded cavity with enhanced output power. The lasers exhibit more uniform photon and carrier density distributions along the cavity than conventional uni-directional high-power lasers, enabling longer lasers with greater output power and lasing efficiency due to reduced longitudinal hole burning. Optical sources are further provided wherein radiation from both facets of several 2AR lasers that are disposed at vertically offset levels is combined into a single composite beam.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: November 26, 2019
    Assignee: Lumentum Operations LLC
    Inventors: Abdullah Demir, Matthew Glenn Peters
  • Bidirectional long cavity semiconductor laser for improved power and efficiency
    Patent number: 9647416
    Abstract: The invention relates to bi-directional long-cavity semiconductor lasers for high power applications having two AR coated facets (2AR) to provide an un-folded cavity with enhanced output power. The lasers exhibit more uniform photon and carrier density distributions along the cavity than conventional uni-directional high-power lasers, enabling longer lasers with greater output power and lasing efficiency due to reduced longitudinal hole burning. Optical sources are further provided wherein radiation from both facets of several 2AR lasers that are disposed at vertically offset levels is combined into a single composite beam.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: May 9, 2017
    Assignee: Lumentum Operations LLC
    Inventors: Abdullah Demir, Matthew Glenn Peters
  • BIDIRECTIONAL LONG CAVITY SEMICONDUCTOR LASER FOR IMPROVED POWER AND EFFICIENCY
    Publication number: 20170093125
    Abstract: The invention relates to bi-directional long-cavity semiconductor lasers for high power applications having two AR coated facets (2AR) to provide an un-folded cavity with enhanced output power. The lasers exhibit more uniform photon and carrier density distributions along the cavity than conventional uni-directional high-power lasers, enabling longer lasers with greater output power and lasing efficiency due to reduced longitudinal hole burning. Optical sources are further provided wherein radiation from both facets of several 2AR lasers that are disposed at vertically offset levels is combined into a single composite beam.
    Type: Application
    Filed: September 30, 2016
    Publication date: March 30, 2017
    Inventors: Abdullah Demir, Matthew Glenn Peters
  • BIDIRECTIONAL LONG CAVITY SEMICONDUCTOR LASER FOR IMPROVED POWER AND EFFICIENCY
    Publication number: 20150333472
    Abstract: The invention relates to bi-directional long-cavity semiconductor lasers for high power applications having two AR coated facets (2AR) to provide an un-folded cavity with enhanced output power. The lasers exhibit more uniform photon and carrier density distributions along the cavity than conventional uni-directional high-power lasers, enabling longer lasers with greater output power and lasing efficiency due to reduced longitudinal hole burning. Optical sources are further provided wherein radiation from both facets of several 2AR lasers that are disposed at vertically offset levels is combined into a single composite beam.
    Type: Application
    Filed: December 23, 2013
    Publication date: November 19, 2015
    Applicant: JDS Uniphase Corporation
    Inventors: Abdullah Demir, Matthew Glenn Peters