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:
Nov. 24, 1992
Filed:
Oct. 12, 1990
Applicant:
Inventor:
Paul J Caldwell, Baltimore, MD (US);
Assignee:
Martin Marietta Corporation, Bethesda, MD (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01S / ;
U.S. Cl.
CPC ...
372 50 ; 372-8 ; 372 26 ; 372 46 ;
Abstract
A method of and apparatus for high speed modulation of a laser by controlling stimulated emission in the direction transverse main output. Because gain in either direction is derived from the same pool of excited carriers, lasing in the transverse direction depletes gain available in the longitudinal direction. The control of the forward output is achieved using either (1) transverse transmission regions depending on the applied bias or (2) transverse absorbing regions.