Invention Grant
- Patent Title: Method and apparatus for optical add/drop multiplexing in optical networks
- Patent Title (中): 光网络中光分插复用的方法和装置
-
Application No.: US10635544Application Date: 2003-08-07
-
Publication No.: US07139486B2Publication Date: 2006-11-21
- Inventor: Ping Wai Wan , Derrick Remedios , Dan Oprea , Patrick Chilufya Chimfwembe
- Applicant: Ping Wai Wan , Derrick Remedios , Dan Oprea , Patrick Chilufya Chimfwembe
- Applicant Address: CA Kanata
- Assignee: Tropic Networks Inc.
- Current Assignee: Tropic Networks Inc.
- Current Assignee Address: CA Kanata
- Agent Victoria Donnelly
- Main IPC: H04J14/02
- IPC: H04J14/02
Abstract:
An optical add/drop multiplexing (OADM) apparatus and method are disclosed for detecting pilot tones, removing ghost tones, and re-inserting pilot tones on WDM signals in an optical network. The OADM apparatus comprises a smart processing and control unit (PCU) for detecting pilot tones used for channel identifications, including identifying and removing ghost tones associated with respective optical channels, and re-inserting the processed pilot tones into the respective optical channels. The OADM apparatus and method may incorporate digital PCU or analog PCU for processing pilot tones and removing ghost tones.
Public/Granted literature
- US20040109685A1 Method and apparatus for optical add/drop multiplexing in optical networks Public/Granted day:2004-06-10
Information query
