Semiconductor optical component utilizing leaky structures to match the mode of rib waveguides to that of the fiber
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 20, 2004
Grant Date -
Jan 9, 2003
app pub date -
Mar 29, 2002
filing date -
Mar 29, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A waveguide component has a slab waveguide, a rib waveguide, and a mode transition section where the rib waveguide and the slab waveguide are adjacent, and where the rib waveguide is tapered, to provide optical coupling, and lateral confinement rib waveguides are provided along the slab waveguide in the mode transition section to confine light from spreading laterally. The lateral confinement ribs can be formed in the same step with the same mask as used for the taper, to ensure alignment with the taper. They can be arranged either side of the taper. The lateral confinement ribs are significant for enabling a mode transition section which couples with low loss. In particular, it reduces the need for the taper to be so fine, or the taper to be made in both vertical and horizontal axes, both of which cause fabrication difficulties.
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