Integrated optical waveguide device

An integrated optical waveguide device comprises: a substrate (10) of a ferroelectric material; at least one waveguide (13;13A,13B) integrated in the substrate in correspondence of a surface (11) thereof; at least a longitudinal section (13;131,132,133;13A,13B) of the at least one waveguide is forme...

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Bibliographic Details
Main Authors PRUNERI VALERIO, VANNUCCI ANTONELLO
Format Patent
LanguageEnglish
Published 16.01.2003
Edition7
Subjects
DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING
FREQUENCY-CHANGING
NON-LINEAR OPTICS
OPTICAL ANALOGUE/DIGITAL CONVERTERS
OPTICAL LOGIC ELEMENTS
OPTICS
PHYSICS
TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Summary:An integrated optical waveguide device comprises: a substrate (10) of a ferroelectric material; at least one waveguide (13;13A,13B) integrated in the substrate in correspondence of a surface (11) thereof; at least a longitudinal section (13;131,132,133;13A,13B) of the at least one waveguide is formed in a respective first substrate region (14;141,142,143;14A,14B;140A,140B;140C,140D) having a first orientation of spontaneous polarization. The first substrate region is sandwiched between at least two second substrate regions (15,16;151,161,152,162,153,163;15A,15B,17A,17B,16A,16B;150,1 60) which have a second orientation of spontaneous polarization, opposite to the first orientation, and are located at opposite sides of the waveguide section with respect to a longitudinal direction thereof.
Bibliography:Application Number: US20020186364