Other

Tellabs Operations, Inc.

Coriant Operations, Inc.

Kimon Papakos

Mark E Boduch

Scott A Blakemore

Gilbert A Buescher

Richard C Younce

Kenneth M Fisher

David J Womac

John M Golding

Gary M Eslary

Yajun Wang

Chris R Zettinger

Bradley Ronald Kangas

Gilbert A Iii Buescher

Example embodiments of the present invention relate to programmable ROADMs used to construct optical nodes. Example embodiments include wavelength switches and waveguide switches, wherein the waveguide switches may be programmed to direct wavelength division multiplexed optical signals to and from the wavelength switches.

Construction of optical nodes using programmable ROADMS

Example embodiments of the present invention relate to a software programmable reconfigurable optical add drop multiplexer (ROADM) comprising of a plurality of wavelength switches and a plurality of waveguide switches, wherein when the plurality of waveguide switches are set to a first switch configuration, the software programmable ROADM provides n degrees of an n-degree optical node, and wherein when the waveguide switches are set to a second switch configuration, the software programmable ROADM provides k degrees of an m-degree optical node.

Method and apparatus for optical node construction using software programmable ROADMs

Example embodiments of the present invention relate to optical wavelength directing devices used to construct compact optical nodes.

Optical devices for the construction of compact optical nodes

Example embodiments of the present invention relate to a multi wavelength-routing-plane optical architecture. Example embodiments include a Reconfigurable Optical Add Drop Multiplexer (ROADM) supporting a multi wavelength-routing-plane optical architecture, and optical networks supporting a multi wavelength-routing-plane optical architecture.

Multi wavelength routing plane optical architecture

Example embodiments and methods of the present invention relate to utilizing optical transmitters and optical receivers embedded within reconfigurable optical add-drop multiplexers of optical nodes to identify problematic optical spans within an optical network.

Methods and apparatus for using an embedded optical signal source within an optical node to locate problematic optical spans

Electrical enclosure

A method and apparatus for performing path protection for rate-adaptive optics is provided. As part of the method, an aggregate input bit stream is received. The aggregate input bit stream is then transmitted using a rate-adaptive optical transceiver when transmitting on a first optical path. When the first optical path has a fault, the aggregate input bit stream is then transmitted on a second optical path using the rate-adaptive optical transceiver and a fixed-rate optical transceiver.

Method and apparatus for performing path protection for rate-adaptive optics

Example embodiments of the present invention relate to an optical node comprising of at least two degrees, a plurality of directionless add/drop ports, a plurality of primary WDM transmitters and receivers, and at least one protection WDM transmitter and receiver, wherein the at least one protection WDM transmitter and receiver can transmit and receive in place of any of the plurality of primary WDM transmitters and receivers.

Method and apparatus for optical transmitter and receiver redundancy within a directionless optical node

A method and apparatus for visually indicating the connections between optical interfaces is provided. The optical interfaces may include multi-wavelength optical interfaces and uni-wavelength optical interfaces. The optical interfaces may reside within optical nodes contained within an optical network.

Method and apparatus for visually indicating connections between mult-wavelength interfaces and uni-wavelength interfaces

Example embodiments of the present invention relate to an optical signal processor comprising of at least one wavelength processing device, a plurality of optical amplifying devices, and a least one field programmable photonic device.

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Evanston, IL, United States of America

Kimon Papakos