Optical waveguides – With optical coupler – Movable coupler
Reexamination Certificate
2005-10-18
2005-10-18
Healy, Brian (Department: 2883)
Optical waveguides
With optical coupler
Movable coupler
C385S015000, C385S016000, C385S031000, C385S036000, C385S050000, C398S043000
Reexamination Certificate
active
06956990
ABSTRACT:
A method and apparatus for multiplexing and demultiplexing optical signals. The apparatus includes first and second optical waveguides coupled via an optical coupler. The optical coupler has a coupling waveguide and an optical switching wedge attached to a piezoelectric actuator. In operation, first and second optical signals are received by the first and second optical waveguides, respectively. If the signals are to be combined, the optical switching wedge is moved to a first position where it is optically coupled to the first optical waveguide. The first optical signal is then transmitted, via the coupling waveguide, to the second optical waveguide, where it is combined with the second optical signal. If the signals are not to be combined, the optical switching wedge is moved to a second position where it is optically uncoupled from the first optical waveguide.
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Fong Arthur
Wong Marvin Glenn
El-Shammaa Mary
Healy Brian
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