Low modal birefringent waveguides and method of fabrication
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 5, 2006
Grant Date -
Jul 14, 2005
app pub date -
Jan 13, 2004
filing date -
Jan 13, 2004
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The illustrative embodiment of the invention is a surface waveguide having low modal birefringence. The surface waveguide has a composite guiding region that is sandwiched by a lower cladding layer and an upper cladding layer, wherein the cladding layers serve to confine propagating light to the composite guiding region. In accordance with the illustrative embodiment, the composite guiding region is structured so that it exhibits a balanced stress configuration, wherein the stress in the direction that aligns with the T.sub.E polarization mode is substantially equal to the stress in the direction that aligns with the T.sub.M polarization mode. The balanced stress configuration results in a surface waveguide that exhibits very low modal birefringence.
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