Optical wavelength routing circuits
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 6, 2004
Grant Date -
N/A
app pub date -
Jan 11, 2002
filing date -
Jan 11, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention comprises apparatuses and methods, for routing optical communication signals over all DWDM wavelength channels. Incoming wavelength channels are separated into a plurality of sub-groups having a smaller optical bandwidth. Wavelength channels within each sub-group are then acted upon independently by a filter, or switch, tunable and operable over the bandwidth of each sub-group. The invention may be embodied in a plurality of dynamic wavelength routing circuits including 1.times.N and N.times.N circuits. The 1.times.N circuit embodiments may be used when the filter free-spectral range is smaller than the full DWDM bandwidth. These embodiments are less complicated than the N.times.N circuit embodiments, but do not provide the same routing bandwidth. The N.times.N circuit embodiments may be used to route the full DWDM bandwidth and may be used for other routing operations having large bandwidth demand.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully