Ferroelectric nanophotonic materials and devices

Details Ferroelectric nanophotonic materials and devices Ferroelectric nanophotonic materials and devices

2006-08-01

2008-03-18

Leung, Quyen P (Department: 2874)

Optical waveguides

Having nonlinear property

Reexamination Certificate

active

07346248

ABSTRACT:
Systems and methods for manipulating light with tunable ferroelectric photonic devices. Devices having tunable properties that exhibit photonic bandgap behavior are fabricated from ferroelectric materials. Apparatus is provided to apply tuning signals to the ferroelectric material using one or more of electric fields, mechanical forces, optical fields, and thermal fields. Control circuitry is provided to generate the control signals needed to apply the tuning signals. Input and output ports are provided to allow input signals to be received and to provide output signals. In some cases, a feedback loop is provided to use a portion of the output signal as a diagnostic signal for control of the operation of the device within an acceptable range. It is expected that ferroelectric photonic devices operating according to principles of the invention will be useful for a wide variety of applications, including optical switching, optical modulation, optical computing, and performing logic optically.

REFERENCES:
patent: 2002/0074537 (2002-06-01), John et al.
patent: 2004/0190117 (2004-09-01), Kubaink
patent: 2004/0218257 (2004-11-01), Chen et al.
patent: 1341010 (2003-09-01), None
PCT International Search Report dated Jan. 12, 2007, and received in connection with foreign counterpart application PCT/US2006/030270.

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