The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 16, 2024
Filed:
Sep. 21, 2020
Applicant:
Clemson University, Clemson, SC (US);
Inventors:
Liang Dong, Clemson, SC (US);
Turghun Matniyaz, Clemson, SC (US);
Assignee:
CLEMSON UNIVERSITY, Clemson, SC (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S 3/067 (2006.01); H01S 3/0941 (2006.01); H01S 3/17 (2006.01); H01S 3/094 (2006.01); H01S 3/16 (2006.01);
U.S. Cl.
CPC ...
H01S 3/06741 (2013.01); H01S 3/06716 (2013.01); H01S 3/06733 (2013.01); H01S 3/09415 (2013.01); H01S 3/094007 (2013.01); H01S 3/1618 (2013.01); H01S 3/175 (2013.01); H01S 3/176 (2013.01); H01S 3/0675 (2013.01); H01S 3/094042 (2013.01); H01S 3/094053 (2013.01);
Abstract
High-power, highly efficient 3-level system fiber lasers are described. The lasers can operate at an average power of about 50W or greater with an efficiency of about 60% or greater with low diffraction limited mode quality. The lasers incorporate an all-solid photonic bandgap fiber that includes a large core (20 micrometers or greater), a high core/clad ratio (greater than 15%), and a waveguide cladding designed to define a transmission band to suppress the 4-level system of the gain medium through determination of the node size of individual nodes of a cladding lattice.