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. 26, 1999
Filed:
Mar. 29, 1996
Applicant:
Inventors:
David F Welch, Palo Alto, CA (US);
David G Mehuys, Menlo Park, CA (US);
Donald R Scifres, San Jose, CA (US);
Assignee:
SDL, Inc., San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S / ; H01S / ;
U.S. Cl.
CPC ...
372 50 ; 372 46 ; 372 20 ; 359344 ;
Abstract
A semiconductor gain medium has an active gain region with a partially patterned radiation diverging region. The partially patterned radiation diverging region may be created with spatial resistive regions formed in a portion of the radiation diverging region having a narrower width than in other portions of the diverging region where the propagating radiation has a greater width. The gain region may be an amplifier or, in addition to the amplifier, may include a resonator cavity, or operate as an unstable resonator.