One step laser fabrication of polymer wave-guided structures having varying width and height, and their application to pigtailing of optical fibers
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 30, 2004
Grant Date -
Mar 20, 2003
app pub date -
Sep 14, 2001
filing date -
Sep 14, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention relates to lithographically formed, tapered waveguides connectable to optical fibers. A tapered waveguide is formed by imagewise exposing, in an oxygen containing atmosohere, and developing a lithographic composition on a substrate. Exposure is conducted by a converging beam of laser light which has a greater intensity a the bottom surface of the coating composition, a lesser intensity at the top surface, and a gradually decreasing intensity from the bottom surface to the top surface of the coating composition. Either the substrate is moved with respect to the converging beam, or the converging beam is moved with respect to the substrate along a linear path. Either the moving is done at a gradually increasing or gradually decreasing velocity or one gradually increases or decreases the intensity of the beam of laser light along the substrate. After developing and removing the non-polyrnerized portion of the coating composition, a tapered waveguide is fornnd on the substrate. The tapered waveguide may be attached to an optical fiber.
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