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:
Dec. 30, 1997
Filed:
Jul. 01, 1996
Applicant:
Inventors:
Paul Claisse, Gilbert, AZ (US);
Philip Kiely, Gilbert, AZ (US);
Assignee:
Motorola, Inc., Schaumburg, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S / ;
U.S. Cl.
CPC ...
372 32 ; 372 19 ; 372 50 ; 372 96 ;
Abstract
A method of controlling the spatial mode of the output of a semiconductor laser including the steps of monitoring above threshold spontaneous emissions of a semiconductor laser. Identifying a point at which the rate-of-change, or the slope, of spontaneous emissions versus drive current abruptly changes. Employing feedback to maintain spatial mode control.