Optical performance monitor

Details Optical performance monitor Optical performance monitor

2006-10-31

2006-10-31

Pak, Sung (Department: 2874)

Optical waveguides

With optical coupler

Plural

C398S135000

Reexamination Certificate

active

07130505

ABSTRACT:
An optical performance monitor for accurate monitoring of the OSNR of a WDM optical signal is provided wherein a demultiplexing arrayed waveguide grating (AWG) having a plurality of Vernier input ports is disposed between an optical switch and a photodiode array coupled to the output ports of the AWG. In operation, the optical switch sequentially provides the input optical signal into each of the Vernier ports, and signals detected by photodiodes are stored in a memory unit. The apparatus is capable of monitoring the OSNR of the WDM signal with a frequency step which is M times smaller than a frequency spacing between the AWG transmission bands, while enabling the OSNR monitoring in an enhanced dynamic range by providing accurate noise sampling.

REFERENCES:
patent: 5233405 (1993-08-01), Wildnauer et al.
patent: 5414540 (1995-05-01), Patel et al.
patent: 5617234 (1997-04-01), Koga et al.
patent: 6075647 (2000-06-01), Braun et al.
patent: 6084695 (2000-07-01), Martin et al.
patent: 6363089 (2002-03-01), Fernald et al.
patent: 6377730 (2002-04-01), Bergmann et al.
patent: 6424466 (2002-07-01), Flanders
patent: 6542659 (2003-04-01), Flanders
patent: 6701042 (2004-03-01), Kang et al.
patent: 6753958 (2004-06-01), Berolo
patent: 6868200 (2005-03-01), Kimotsuki et al.
patent: 6915030 (2005-07-01), Svilans et al.
patent: 6941079 (2005-09-01), Barozzi et al.
patent: 2002/0191887 (2002-12-01), Bidnyk
patent: 2004/0096151 (2004-05-01), Svilans et al.
patent: 2005/0031259 (2005-02-01), Shen

Affiliated with

Also associated with

Rating

Optical performance monitor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optical performance monitor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical performance monitor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3638230