公开(公告)号：US10200144B1

公开(公告)日：2019-02-05

申请号：US15705450

申请日：2017-09-15

申请人： Alcatel-Lucent USA Inc.

发明人： Aref Chowdhury ,  David Miles

IPC分类号： H04J14/02 ,  H04B10/50 ,  G02B6/293 ,  G02B6/12

摘要： A communication system that can be used, e.g., to provide high-speed access to the servers of a data center. In an example embodiment, the communication system transports data using WDM optical signals. The downlink WDM signals have some WDM components that are modulated with data and some WDM components that are not modulated with data. The uplink WDM signals are generated at the server end of the system by modulating with data the unmodulated WDM components received through the downlink. Appropriately connected wavelength multiplexers, wavelength demultiplexers, and/or optical filters can be used to properly apply the various modulated WDM components to the corresponding optical receivers and the unmodulated WDM components to the corresponding optical transmitters. The resulting system architecture advantageously enables, e.g., the use of a single, conveniently located multi-wavelength light source to provide carrier wavelengths for both uplink and downlink optical traffic.