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:
Mar. 31, 1992
Filed:
Sep. 19, 1990
Applicant:
Inventor:
Yasuo Nakajima, Itami, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ; H01S / ; G02F / ;
U.S. Cl.
CPC ...
385 42 ; 385 30 ; 385 38 ; 385128 ; 385 14 ; 372-6 ; 372-7 ; 372 49 ; 372 50 ; 372 99 ; 359173 ; 359174 ;
Abstract
An optical amplifier apparatus which amplifies a signal light in an optical fiber includes an optical fiber having a core containing a rare-earth dopant element and an excitation light source including a semiconductor laser for generating excited light and an optical amplifier utilizing a semiconductor laser for amplifying the excited light and supplying the amplified excited light to the optical fiber.