Electrical domain improvement of optically filtered signals

Details Electrical domain improvement of optically filtered signals Electrical domain improvement of optically filtered signals

1997-09-30

1999-09-14

Negash, Kinfe-Michael

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359111, 359161, 379417, H04J 1402

Patent

active

059531401

ABSTRACT:
An efficient and inexpensive system and method for reducing crosstalk between adjacent channels in a high density WDM transmission. The technique provided herein cancels out the effects of crosstalk by processing signals in the electrical domain after the optical WDM transmission has been demultiplexed. Specifically, a WDM transmission is received and demultiplexed into its constituent channels via a plurality of optical filters. Each channel is then transduced into an electrical signal using a photodetector or the like. Each electrical signal is then inverted, attenuated and added to one or two adjacent channels to cancel crosstalk therein.

REFERENCES:
patent: 5469288 (1995-11-01), Onaka et al.
patent: 5557439 (1996-09-01), Alexander et al.

Affiliated with

Also associated with

Rating

Electrical domain improvement of optically filtered signals does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electrical domain improvement of optically filtered signals, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrical domain improvement of optically filtered signals will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1515449