Optical waveguides – With optical coupler – Switch
Reexamination Certificate
2006-12-05
2006-12-05
Connelly-Cushwa, Michelle (Department: 2874)
Optical waveguides
With optical coupler
Switch
C385S129000
Reexamination Certificate
active
07146070
ABSTRACT:
Electro-optically operated transmitters containing a wave guide liquid crystal beam steering device in series of fine beam steering devices as well as electrically switchable mirror are disclosed. The wave guide beam steering device is constructed on a planar lightwave circuit that contains a plurality of liquid crystal switching elements intersecting a plurality of optical wave guides and one main wave guide that has a curvature for light propagation. The transceiver is capable of continuously steering multiple beams of light into separate independent directions with a field-of-regard close to 4π. The resulted optical transmitter device is motionless, polarization sensitive or insensitive, stable within the operational spectral region, and stable versus temperature. When an optical receiver is integrated, the transmitters become transceivers. The invention also includes the methods for manufacturing the wave guide beam steering device.
REFERENCES:
patent: 6424755 (2002-07-01), Clapp
patent: 6559921 (2003-05-01), Leslie et al.
Chen Zhan
Li Le
Tang Ben Y.
Yu Haiping
Connelly-Cushwa Michelle
Hodgson Rodney T.
Kent Optronics Inc.
Rahll Jerry T
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