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:
Jun. 20, 2023
Filed:
Apr. 22, 2021
Applicant:
Gigaphoton Inc., Tochigi, JP;
Inventor:
Takashi Onose, Oyama, JP;
Assignee:
Gigaphoton Inc., Tochigi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S 3/00 (2006.01); G02B 27/09 (2006.01); G02B 27/10 (2006.01); H01S 3/10 (2006.01); H01S 3/23 (2006.01); H01S 5/00 (2006.01); H01S 3/225 (2006.01);
U.S. Cl.
CPC ...
H01S 3/0085 (2013.01); G02B 27/0983 (2013.01); G02B 27/10 (2013.01); H01S 3/0057 (2013.01); H01S 3/10 (2013.01); H01S 3/2308 (2013.01); H01S 5/005 (2013.01); H01S 3/2251 (2013.01); H01S 2301/08 (2013.01); H01S 2301/20 (2013.01);
Abstract
A laser system including: A. a laser apparatus configured to output a pulse laser beam; B. an optical pulse stretcher including a delay optical path for expanding a pulse width of the pulse laser beam; and C. a phase optical element included in the delay optical path and having a function of spatially and randomly shifting a phase of the pulse laser beam. The phase optical element includes a plurality of types of cells providing different amounts of phase shift to the pulse laser beam and arranged irregularly in any direction.