バンド化チャネル構成を有する光アド/ドロップ・マルチプレクサ

Japanese Patent JP4571020

B2

An optical add/drop multiplexer (OADM) adapted to route optical signals having at least two different bit rates. The OADM has at least two sets of DWDM channels, e.g., with channels in a first set having a first bandwidth value suitable for the transmission of 10-Gb/s signals and channels in a second set having a second bandwidth value suitable for the transmission of 40-Gb/s signals. The first and second sets occupy two different spectral bands and the first set has two subsets of interleaved channels. In one embodiment, the OADM has first and second optical branches adapted to process optical signals corresponding to first and second groups of channels, respectively. The first group includes a first subset from the first set while the second group includes the second set and a second subset from the first set. Advantageously, OADMs of the invention may be used to create independent processing paths for different groups of channels. As a result, a communication system having those OADMs can be upgraded, e.g., to add a new 40-Gb/s service and/or to populate additional 10-Gb/s channels substantially without interrupting the 10-Gb/s service already in place.

WO/2000/030282	CODE-BASED OPTICAL NETWORKS, METHODS, AND APPARATUS
JP4479719	Optical pulse time diffuser
JP3929729	NOISE FIGURE MEASURING DEVICE FOR OPTICAL AMPLIFIER

Daniel A. Fishman
Cian Liu
Vincent John Silverio
William A. Thompson
Jinping Inn

JP2005175918A

October 27, 2010

June 16, 2005

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Alcatel-Lucent USA Inc.

H04J14/00; G02B6/34; H04B10/2513; H04B10/27; H04B10/275; H04B10/29; H04B10/291; H04J14/02

JP2002112294A
JP2006005937A
JP2004518333A
JP2001345784A
JP2002280967A
JP2005065019A
JP2005051779A

US20040004756

Okabe
Masao Okabe
Nobuaki Kato
Kazuo
Shinichi Usui
Takao Ochi
Teruhisa Motomiya
Asahi Shinmitsu
Katsumi Miyama

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