Optical filters
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 27, 2005
Grant Date -
Mar 25, 2004
app pub date -
Nov 23, 2001
filing date -
Nov 30, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An optical interference filter (2) is provided by a substrate (1) in which is formed a plurality of parallel slots so as to define layers (slots and substrate laminae) of alternating refractive index. As shown, the filter comprises a central Fabry-Perot resonator slot cavity (3) between two mirror groups (4, 5) of alternating slots and substrate laminae, and is coupled to optical fibers (7) accommodated in V-grooves (6) on either side. For tuning, one mirror group (5) may be movable in the direction of arrow (A), or, where the central resonator is provided by substrate material, by altering its temperature. One or more further Fabry-Perot filters may be formed in the substrate and coupled to the filter (2). The invention encompasses non-resonating filters.
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