Variable optical attenuator
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Sep 19, 2002
app pub date -
Mar 19, 2001
filing date -
Oct 16, 2000
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A variable optical reflector/attenuator includes an optical coupler having first, second, third and fourth ports, the first port receives input optical signals, the fourth port provides output signals. A loop of optical fiber is coupled between the third and fourth ports. A non-reciprocal phase shifter is disposed in the loop. The non-reciprocal phase shifter is operable to provide a non-reciprocal phase shift variable from a first predetermined phase shift to a second predetermined phase shift, to control the amount of light received at thed first port that is coupled to the output port and the amount of light reflected to the first port.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
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