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. 21, 2016
Filed:
Oct. 18, 2006
Applicant:
David Legge, Crewe Toll, GB;
Inventor:
David Legge, Crewe Toll, GB;
Assignee:
SELEX ES LTD, Essex, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S 3/11 (2006.01); H01S 3/08 (2006.01); H01S 3/094 (2006.01); H01S 3/0941 (2006.01); H01S 3/10 (2006.01); H01S 3/16 (2006.01);
U.S. Cl.
CPC ...
H01S 3/11 (2013.01); H01S 3/0804 (2013.01); H01S 3/0941 (2013.01); H01S 3/094076 (2013.01); H01S 3/10038 (2013.01); H01S 3/1611 (2013.01); H01S 3/1643 (2013.01);
Abstract
A method for preventing spatial or spectral beam seeding in a Q-switched laser is described. The Q-switch trigger of the laser is delayed by several laser resonator lifetimes after the end of the pump pulse. In this way, beam seeding is completely eliminated whilst pre-lase is maintained. The method described may be used for any laser system where the fall time of the pump radiation is sufficiently fast with respect to the upper state lifetime of the laser medium.