Class 385/2 - Electro-optic

Subclass of Class 385 - Optical waveguides
Definition: Subject matter wherein the optical properties of an optical
No. of patents: 1152
Last issue date: 05/15/2012

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Number	Title	Issue Date
8180183	Parallel modulator photonic link An RF photonic link having at least one light source, at least one photodetector, multiple optoelectronic modulators, and an RF waveguide common to each one of said multiple optoelectronic modulators. The multiple optoelectronic modulators are optically arranged in ...	05/15/2012
8180184	Absorption modulator and manufacturing method thereof An absorption modulator is provided. The absorption modulator includes a substrate, an insulation layer disposed on the substrate, and a waveguide having a P-I-N diode structure on the insulation layer. Absorptance of an intrinsic region in the P-I-N diode structure...	05/15/2012
8170381	Optical modulator In an optical modulator comprising substrate 1 having electro-optical effect, two optical waveguides 3a, 3b formed in the substrate, buffer layer 2 formed on the substrate, traveling-wave electrode 4 having center con...	05/01/2012
8160404	High speed and low loss GeSi/Si electro-absorption light modulator and method of fabrication using selective growth An optoelectronic device includes an input waveguide structure that receives an input optical signal. A GeSi/Si waveguide structure receives from the input waveguide the input optical signal and performs selective optoelectronic operations on the input optical signa...	04/17/2012
8139903	Driving circuit of optical gate switch A driving circuit of a semiconductor optical amplifier type gate switch constituting a matrix optical switch is provided with an operation amplifier into which a driving signal is input and from which a current corresponding to the driving signal is output, an induc...	03/20/2012
8135242	Optical modulator In an optical modulator, an intermediate substrate is provided separate from a main substrate on which a plurality of optical modulation sections are provided in parallel, and signal lines corresponding to the optical modulation sections are formed on the intermedia...	03/13/2012
8135241	Optical modulation device utilizing electro-optic effect An optical modulation device includes: a crystal substrate having an electro-optic effect; an optical waveguide formed in the crystal substrate; an electrode formed on the crystal substrate, to apply an electric field to the optical waveguide; and a buried layer of ...	03/13/2012
8135243	Transparent conducting components and related electro-optic modulator devices New electro-optic (EO) phase modulator devices and geometries, as can be constructed using a transparent conductive component. ...	03/13/2012
8098965	Electroabsorption modulator based on fermi level tuning A novel electroabsorption modulator based on tuning the Fermi level relative to mid-gap states in a semiconductor. The modulator includes a semiconductor waveguide that has an input port and an output port. Between the input port and the output port is a section of ...	01/17/2012
8090226	Optical waveguide device and method for suppressing temperature crosstalk of optical waveguide device An optical waveguide device includes: a substrate having an electro-optical effect; an optical waveguide section formed on the substrate; and a plurality of modulating electrodes for modulating optical waves propagating in the optical waveguide section. The optical ...	01/03/2012
8086078	Electronic device An electronic device in which a signal electrode has a bent portion. Earth electrodes are formed with the signal electrode between. A width of a gap at the bent portion between the signal electrode and each earth electrode is narrower than a width of a gap at both e...	12/27/2011
8081850	Device with tunable plasmon resonance A device includes a resonator capable of supporting a plasmon mode, a gain structure arranged to couple energy into the resonator, and a memristive layer arranged to provide an interaction with the plasmon mode. An electric signal applied to the memristive layer can...	12/20/2011
8081851	Electrooptical high-index contrast waveguide component A high-index contrast waveguide component is presented, which is based on the fast changing of the transmission properties of an optical waveguide by applying electric voltages, or by embossing electric currents. The waveguide consists of a high-refractive waveguide...	12/20/2011
8078014	High-speed electro-optical modulator A method of amplitude electro-optic modulation. The method includes transmitting a narrowband laser light into an electro-optically active waveguide in a first direction. The electro-optically active waveguide has a grating for reflecting the narrowband laser light....	12/13/2011
8068703	Optical modulator An optical modulator is provided which suppresses a radiation mode of a microwave generated in a connection substrate or a termination substrate from entering a signal electrode of the optical modulator and suppresses modulation properties from being degraded.	11/29/2011
8059922	Methods of manipulating optical energy within a waveguide A micro-ring configured to selectively detect or modulate optical energy includes at least one annular optical cavity; at least two electrodes disposed about the optical cavity configured to generate an electrical field in the at least one optical cavity; and an opt...	11/15/2011
8031985	Optical XOR logic gate An all-optical XOR logic gate. In one embodiment, a single photon absorption medium is used to provide enhanced optical response of a gate to an applied optical signal. The apparatus described uses at least two gate inputs and an optical modulation structure such as...	10/04/2011
8031983	Light modulation device The present invention is directed to provide a light modulation device capable of not only restricting the faint light propagating in the adhesive layer from being re-incident on the thin substrate but also increasing an adhesive strength of the thin substrate and t...	10/04/2011
8031987	Optical modulator An optical modulator suppresses a radiation mode of a microwave generated in a connection substrate or termination substrate from entering a signal electrode of the optical modulator and suppresses modulation properties from being degraded. The optical modulator inc...	10/04/2011
8031986	Optical control device The optical device includes a substrate having an electrooptic effect; a plurality of optical waveguides formed in the substrate in parallel to one another; and a polarization inversion region which is disposed a part of the substrate and which has a polarization ch...	10/04/2011
8031984	Semiconductor optical modulator The present invention can provide an npin-type optical modulator that has a high withstand voltage and is easily fabricated. A semiconductor optical amplifier (10) according to an embodiment of the present invention is an npin-type semiconductor optical modul...	10/04/2011
8009937	Charge-based memory cell for optical resonator tuning An optical resonator configured to be tuned using a charge-based memory cell includes an optical cavity configured to transmit light and receive injected charge carriers; a charge-based memory cell in proximity to or within the optical cavity, the memory cell contai...	08/30/2011
7995872	Optical modulator component and optical modulator An optical modulator component 2 has a substrate 4 for modulation made of an electro-optical material and having a joining face 4b; an optical waveguide 6 provided in or on the substrate 4 and having at least one pair of bra...	08/09/2011
7974501	Optical modulators An optical modulator 24 has a supporting substrate 5, a modulating substrate 11 made of an electro-optical material, an optical waveguide 12 provided on the side of a first main surface 30 of the modulating substrate 11, and...	07/05/2011
7970241	High efficient silicon-on-lithium niobate modulator A modulator includes an electro-optical substrate and a first and second waveguide formed of a doped semiconductor material positioned on a surface of an electro-optical substrate forming a slot therebetween. A doping level of the semiconductor material being chosen...	06/28/2011
7925123	Optical control device A light control element is provided with a thin board having electro-optical effects; an optical waveguide formed on the thin board; and a control electrode for controlling light that passes through the optical waveguide. The light control element performs speed mat...	04/12/2011
7925124	Electro-optical tunable filter and manufacturing process An electro-optical filter made of a support in which an optical guide with a diffused channel waveguide and of a cover, that are created in borosilicate glass, and which includes a gap obtained by the use of suitable spacers, filled with a grating constituted of alt...	04/12/2011
7912327	Hybrid strip-loaded electro-optic polymer/sol-gel modulator A hybrid strip-loaded EO polymer/sol-gel modulator in which the sol-gel core waveguide does not lie below the active EO polymer waveguide increases the higher electric field/optical field overlap factor Γ and reduces inter-electrode separation d thereby lowering th...	03/22/2011
7912326	Optical control device A light control element is provided with a thin board having electro-optical effects; an optical waveguide formed on the thin board; and a control electrode for controlling light that passes through the optical waveguide. The light control element performs speed mat...	03/22/2011
7899277	Integrated on-chip inductors and capacitors for improved performance of an optical modulator An optical modulator for fiberoptic telecommunications is disclosed in which the optical signal velocity in the modulator waveguide and the electrical signal velocity in the traveling wave signal electrode are purposely mismatched by a factor of up to about 4. On-ch...	03/01/2011
7899276	Distributed amplifier optical modulator Various embodiments described herein comprises an optoelectronic device comprising a waveguide structure including a plurality of optical modulator elements each having an optical property that is adjustable upon application of an electrical signal so as to modulate...	03/01/2011
7873244	Light control device To provide a light control device which is possible to realize a velocity matching between a microwave and an optical wave or an impedance matching of microwaves even through a signal oath having a high impedance of 70Ω or more, and is possible to reduce a driving ...	01/18/2011
7856156	Lithium niobate modulator having a doped semiconductor structure for the mitigation of DC bias drift There is provided in one of the embodiments of the disclosure a lithium niobate modulator structure for mitigating DC bias drift comprising a highly doped semiconductor layer patterned above an optical waveguide having one or more DC sections and an RF section, wher...	12/21/2010
7856155	Light modulator and its fabrication method It is an object of the invention to provide a light modulator using a thin plate having a thickness of 20 μm or less and capable of stably holding a conductive film suppressing troubles such as resonance phenomenon of microwaves in a substrate and pyro-electric phe...	12/21/2010
7835597	Transparent conducting components and related electro-optic modulator devices New electro-optic (EO) phase modulator devices and geometries, as can be constructed using a transparent conductive component. ...	11/16/2010
7826688	Enhancing the sensitivity of resonant optical modulating and switching devices Embodiments of the inventions described herein comprise a device and method for manipulating an optical beam. The method comprises propagating an optical beam through a waveguide in proximity to a resonant cavity and pumping the resonant cavity with sufficient optic...	11/02/2010
7826689	Optical device which outputs independently modulated light beams in respective TE and TM polarization modes According to an aspect of an embodiment, an optical device comprising: a first modulator for independently modulating first light having a first predetermined polarization mode; a second modulator for independently modulating second light having a second predetermin...	11/02/2010
7822297	Optical modulator It is an object of the invention to provide an optical modulator in which a connection substrate or a terminal substrate is disposed outside an optical modulation element and which can maintain at a proper voltage amplitude value a modulation signal applied to an op...	10/26/2010
7809216	Bi-directional signal interface and apparatus using same A signal interface includes a dual-drive device having a first and a second input port that receive an outgoing signal. One of the first and the second input ports also receive an incoming signal. The dual-drive device passes the incoming signal to an output port wh...	10/05/2010
7809217	Light control element In a polarization-independent light control element operable at low voltage, optical waveguides are provided in an X-cut first substrate and control electrodes are disposed thereabove. Optical waveguides are provided in a Z-cut second substrate and control electrode...	10/05/2010

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Class 385/2 - Electro-optic