Invention Grant
US08111995B2 Shared, colorless add/drop configuration for a ROADM network using M×N wavelength switches
失效
使用M×N个波长开关的ROADM网络的共享无色加/关配置
- Patent Title: Shared, colorless add/drop configuration for a ROADM network using M×N wavelength switches
- Patent Title (中): 使用M×N个波长开关的ROADM网络的共享无色加/关配置
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Application No.: US12378079Application Date: 2009-02-11
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Publication No.: US08111995B2Publication Date: 2012-02-07
- Inventor: Philip Wisseman
- Applicant: Philip Wisseman
- Applicant Address: US GA Atlanta
- Assignee: AT&T Intellectual Property I, L.P.
- Current Assignee: AT&T Intellectual Property I, L.P.
- Current Assignee Address: US GA Atlanta
- Main IPC: H04J14/02
- IPC: H04J14/02
Abstract:
A system and method for dynamically adding/dropping wavelengths in a reconfigurable optical add-drop multiplexer (ROADM) transport network is disclosed. The system includes a plurality of M×N wavelength selective switches (WSS) for locally dropping selected wavelengths at a node, where each M×N WSS has M inputs connected to optical fan-out devices in each of M network degrees, and a plurality of M×N wavelength selective switches for locally adding selected wavelengths to a node, where each M×N WSS has M outputs connected to optical fan-in devices in each of M network degrees. Several expedients of M×N wavelength selective switches comprising M switching elements for use in the system are also disclosed.
Public/Granted literature
- US20100202778A1 Shared, Colorless Add/Drop Configuration for a ROADM Network using MxN Wavelength Swithches Public/Granted day:2010-08-12
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