Optical performance monitor

Optical waveguides – With optical coupler – Plural

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C398S135000

Reexamination Certificate

active

07035505

ABSTRACT:
An apparatus for monitoring an input optical signal at a plurality of distinct optical frequencies is disclosed wherein a demultiplexing arrayed waveguide grating (AWG) having a plurality of M>1 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 input optical signal with a frequency step which is M times smaller than a frequency spacing between the AWG transmission bands, and obtain M frequency-resolved readings from each photodiode.

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: 6868200 (2005-03-01), Kimotsuki 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.
“Silica-Based Thermo-Optic Switches” by M. Okuno et al. NTT Review vol. 7 No. 5, Sep. 1995.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

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

     

Profile ID: LFUS-PAI-O-3590772

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.