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:
Aug. 28, 2007
Filed:
Jun. 29, 2005
Akira Miura, Kawasaki, JP;
Hiroki Ooi, Kawasaki, JP;
Yasuhiro Yamauchi, Kawasaki, JP;
Yoshinobu Kubota, Kawasaki, JP;
Akira Miura, Kawasaki, JP;
Hiroki Ooi, Kawasaki, JP;
Yasuhiro Yamauchi, Kawasaki, JP;
Yoshinobu Kubota, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
In a chromatic dispersion and dispersion slope compensating apparatus according to the present invention, a WDM light which has been angularly dispersed to a first direction by a VIPA plate, is angularly dispersed to a second direction vertical to the first direction by a diffraction grating, and optical signals of respective wavelengths output from the diffraction grating are reflected by any one of a plurality of three-dimensional mirrors having reflective surfaces of curved shapes different from each other, to be returned to the VIPA plate. Thus, with a simple control mechanism in which the plurality of three-dimensional mirrors are moved to only the second direction, an apparatus capable of variably compensating for the chromatic dispersion and the dispersion slope independent of each other can be provided.