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. 25, 2012
Filed:
Sep. 16, 2009
Zhiyong Huang, Shenzhen, CN;
Buyun Wang, Shenzhen, CN;
Zhiyong Huang, Shenzhen, CN;
Buyun Wang, Shenzhen, CN;
Huawei Technologies Co., Ltd., Shenzhen, CN;
Abstract
A grooming apparatus for an optical communication network is disclosed. The apparatus mainly includes a first photoelectric integration unit and an electrical-layer grooming unit. The first photoelectric integration unit includes a wavelength division multiplexing/demultiplexing unit and a photo-electric/electric-photo conversion unit. The wavelength division demultiplexing unit is configured to demultiplex a multi-wavelength optical signal into single-wavelength optical signals. The photo-electric conversion unit is configured to convert the single-wavelength optical signals to single-wavelength electrical signals. The electrical-layer grooming unit is configured to groom the single-wavelength electrical signals. The present invention overcomes the fatal defect of light dispersion, light power estimation, light power adjustment, OSNR limitation for a conventional OADM/ROADM system. Also, the flexibility of the electrical-layer grooming eliminates the wavelength broadcast and multicast issue. The processing of the electrical layer also addresses the wavelength monitoring issue and the wavelength conflict issue.