Optical waveguides – With optical coupler – Switch
Reexamination Certificate
2006-03-21
2006-03-21
Ullah, Akm Enayet (Department: 2874)
Optical waveguides
With optical coupler
Switch
C385S015000, C385S039000, C385S040000
Reexamination Certificate
active
07016560
ABSTRACT:
Devices utilize elements carried by a fluid in a microchannel toswitch, attenuate, shutter, filter, or phase shift optical signals. In certain embodiments, a microchannel carries a gaseous or liquid slug that interacts with at least a portion of the optical power of an optical signal traveling through a waveguide. The microchannel may form part of the cladding of the waveguide, part of the core and the cladding, or part of the core only. The microchannel may also have ends or may be configured as a loop or continuous channel. The fluid devices may be self-latching or may be semi-latching. The fluid in the microchannel is moved using e.g., e.g., electrocapillarity, differential-pressure electrocapillarity, electrowetting, continuous electrowetting, electrophoresis, electroosmosis, dielectrophoresis, electro-hydrodynamic electrohydrodynamic pumping, magneto-hydrodynamic magnetohydrodynamic pumping, thermocapillarity, thermal expansion, dielectric pumping, and/or variable dielectric pumping.
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Kenney John T.
Purchase Ken G.
Saville Dudley A.
Ticknor Anthony J.
Vacca Giacomo
Lightwave Microsystems Corporation
Morrison & Foerster / LLP
Ullah Akm Enayet
Wood Kevin S.
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