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:
Dec. 11, 2012
Filed:
Mar. 02, 2010
Hiroki Ooi, Kawasaki, JP;
Akira Miura, Kawasaki, JP;
Tsuyoshi Yamamoto, Kawasaki, JP;
Naoki Hashimoto, Kawasaki, JP;
Hiroki Ooi, Kawasaki, JP;
Akira Miura, Kawasaki, JP;
Tsuyoshi Yamamoto, Kawasaki, JP;
Naoki Hashimoto, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
An OADM in a wavelength division multiplexing transmission system includes a wavelength selection switch that selects a predetermined wavelength from a multiple optical signal obtained by multiplexing a phase modulated signal and an intensity modulated signal and outputs the selected wavelength signal to a predetermined output port. The wavelength selection switch has a different delay for each wavelength of the multiple optical signal. For example, the wavelength selection switch includes a mirror array. Optical paths from the surfaces of mirrors arranged on the mirror array to the diffraction grating are different in the case of adjacent mirrors.