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:
Oct. 31, 2006
Filed:
Oct. 07, 2004
Applicant:
Ken Morito, Kawasaki, JP;
Inventor:
Ken Morito, Kawasaki, JP;
Assignee:
Fujitsu Limited, Kawasaki, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01S 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The optical amplifying device comprises a DFB laserformed on an n type InP substrate, for outputting control light; a symmetrical Mach-Zehnder interferometerformed on the n type InP substrateand including 3 dB optical couplershaving 2 input ports and 2 output ports, and optical waveguideswhich optically interconnect the output port of the 3 dB optical couplerand the input port of the 3 dB optical coupler; and SOAsrespectively formed in the optical waveguides
Morito, Ken. (2006). Optical amplifying device (U.S. Patent No. 7130112). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7130112
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