Transmission apparatus and transmission system
US-9467244-B2 · Oct 11, 2016 · US
Methods for expanding cross-connect capacity in a ROADM optical network
US9048974B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9048974-B2 |
| Application number | US-201213685415-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 26, 2012 |
| Priority date | Sep 29, 2009 |
| Publication date | Jun 2, 2015 |
| Grant date | Jun 2, 2015 |
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Abstract
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A reconfigurable optical add-drop multiplexer (ROADM) transport network comprising a plurality of optical fan-out devices and a first plurality and a second plurality of demultiplexers for locally dropping selected wavelengths; and first plurality and a second plurality of multiplexers for locally adding selected wavelengths, the first and second plurality disposed in a cascaded relationship to enable selective coupling between network degrees.
First claim
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I claim: 1. A system for dynamically adding and dropping wavelengths in a reconfigurable optical add-drop multiplexer transport network comprising: a plurality of cross-connect modules arranged in a cascaded relationship, each of the plurality of cross-connect modules comprising: a plurality of multiplexers for receiving an input signal from a first network degree and to output a signal to a second network degree, and for routing and locally adding selected wavelengths, wherein o…
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Electricity · mapped topic
Electricity · mapped topic
- H04J14/0209Primary
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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- What does patent US9048974B2 cover?
- A reconfigurable optical add-drop multiplexer (ROADM) transport network comprising a plurality of optical fan-out devices and a first plurality and a second plurality of demultiplexers for locally dropping selected wavelengths; and first plurality and a second plurality of multiplexers for locally adding selected wavelengths, the first and second plurality disposed in a cascaded relationship to…
- Who is the assignee on this patent?
- At & T Ip I Lp
- What technology area does this patent fall under?
- Primary CPC classification H04J14/0209. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jun 02 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).