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. 27, 2015
Filed:
Dec. 13, 2011
Applicants:
Goji Nakagawa, Kawasaki, JP;
Susumu Kinoshita, Kawasaki, JP;
Inventors:
Goji Nakagawa, Kawasaki, JP;
Susumu Kinoshita, Kawasaki, JP;
Assignee:
Fujitsu Limited, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 10/06 (2006.01); H04B 10/12 (2006.01); H01S 3/10 (2006.01); H04B 10/67 (2013.01); H04B 10/291 (2013.01); G02B 6/42 (2006.01); H01S 5/022 (2006.01); H01S 5/40 (2006.01);
U.S. Cl.
CPC ...
H04B 10/673 (2013.01); H04B 10/2914 (2013.01); G02B 6/4206 (2013.01); G02B 6/421 (2013.01); H01S 5/02216 (2013.01); H01S 5/4031 (2013.01);
Abstract
An optical receiving device includes multiple input ports to which light is input; multiple amplifiers that are arrayed and provided corresponding to the input ports, respectively, each of the amplifiers amplifying and outputting light input from a corresponding input port among of the input ports; a photo diode that converts light into an electrical signal; and a lens that inputs to the photo diode light output from the amplifiers.