Apparatus and method for reading data from an optical packet...

Details Apparatus and method for reading data from an optical packet... Apparatus and method for reading data from an optical packet...

H - Electricity

04

L

H04L 12/56 (2006.01) H04B 10/20 (2006.01) H04Q 11/00 (2006.01)

Patent

CA 2327999

A method of reading and updating a packet header of an optical packet for transmission over an optical network involves dividing the input signal into two paths. The signal in one path (46) is converted into an electrical signal and the header information is read. The data stored in the packet header is removed optically in the other path (44) by constraining the packet header signal to have a constant amplitude. Updated header information is used to modify the constant amplitude signal using a modulator (60). An apparatus is provided for implementing the method. The header is thus read in the electrical domain, but it is updated optically.

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