Invention Grant
- Patent Title: Routing in a WDM-based PON
- Patent Title (中): 基于WDM的PON中的路由
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Application No.: US14647433Application Date: 2012-12-04
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Publication No.: US09544669B2Publication Date: 2017-01-10
- Inventor: Patryk Urban , Jiajia Chen
- Applicant: Telefonaktiebolaget L M Ericsson (publ)
- Applicant Address: SE Stockholm
- Assignee: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
- Current Assignee: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
- Current Assignee Address: SE Stockholm
- Agency: Nicholson De Vos Webster & Elliott LLP
- International Application: PCT/SE2012/051342 WO 20121204
- International Announcement: WO2014/088480 WO 20140612
- Main IPC: H04B10/00
- IPC: H04B10/00 ; H04Q11/00 ; H04J14/02 ; H04B10/071 ; G01M11/00

Abstract:
It is disclosed a remote node connectable to multiple feeder fibers from one or more central offices, COs, of a wavelength division multiplexing-based passive optical network, WDM-based PON. The remote node comprises one or more splitters each configured to receive a monitoring signal on a connected feeder fiber and to split the monitoring signal into split monitoring signals, wherein the monitoring signal uses one wavelength at a time out of a group of different wavelengths, and an arrayed waveguide grating, AWG, with output ports connectable to drop fibers. The AWG is configured to route the split monitoring signals to output ports of said AWG based on a currently used wavelength of said group of different wavelengths, for supervising drop fibers connected to the output ports. Also, a method for a remote node in the WDM-based PON, of routing a monitoring signal, is disclosed.
Public/Granted literature
- US20150326956A1 ROUTING IN A WDM-BASED PON Public/Granted day:2015-11-12
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