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8175422 |
Optical modulator
In an optical modulator, a first electrode portion having a plurality of first electrodes is provided on the upper surface of a base part having a periodically-poled structure and a second...
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8103136 |
Thermo-optic devices providing thermal recirculation
Thermo-optical devices providing heater recirculation in an integrated optical device are described. The thermo-optical devices include at least one waveguide having a non-linear path length in...
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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...
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8090229 |
Method and device for providing electronic circuitry on a backplate
A MEMS-based display device is described, wherein an array of interferometric modulators are configured to reflect light through a transparent substrate. The transparent substrate is sealed to a...
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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...
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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...
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8031012 |
Optoelectronic oscillator and pulse generator
The objects of the present invention are to shorten a cavity length of an optoelectronic oscillator and to integrate on a semiconductor or SiO2-substrate. An optoelectronic oscillator 10 have an...
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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...
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8019185 |
Unit-cell array optical signal processor
This invention provides a versatile unit cell as well as programmable and reconfigurable optical signal processors (such as optical-domain RF filters) that are constructed from arrays of those unit...
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7986452 |
High-speed multiplied signal generating method and device
It is an object of the present invention to provide an apparatus that can obtain a multiplied harmonic signal fast and with ease, and the method using the apparatus. The object is attained by the...
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7978953 |
Methods for visually inspecting interferometric modulators for defects
A method is provided for visual inspection of an array of interferometric modulators in various driven states. This method may include driving multiple columns or rows of interferometric modulators...
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7973265 |
Coupled optical waveguide resonators with heaters for thermo-optic control of wavelength and compound filter shape
An integrated optical device is disclosed comprising a substrate, optical waveguide, and compound optical resonator having a temperature sensor, at least two coupled optical resonators, and a...
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7953305 |
Optical waveguide device and producing method thereof
An optical waveguide device includes; a substrate having an electro-optic effect, and a first optical waveguide and a second optical waveguide formed substantially in parallel on a top face of the...
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7949210 |
Silicon-compatible surface plasmon optical elements
This invention provides fundamental science and novel device architectures for surface plasmon (SP)-based, complementary metal oxide semiconductor (CMOS)-compatible, optical elements such as...
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7933476 |
Method and device for providing electronic circuitry on a backplate
A MEMS-based display device is described, wherein an array of interferometric modulators are configured to reflect light through a transparent substrate. The transparent substrate is sealed to a...
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7933483 |
Electro-optical memory cell
An electro-optical memory cell having a non-volatile programmable refractive index and a method of making. The memory cell includes: a waveguiding structure having a transition metal oxide with...
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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...
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7925122 |
Slot waveguide for color display
A slot waveguide utilized as a color-selecting element. The slot waveguide includes a first layer of plasmon supporting material, the first layer being optically opaque and having an input slit...
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7920769 |
Optical element, integrated optic device and optical information transmission system
In a compact formed by subjecting an ultrafine particle brittle material supplied on a substrate to mechanical impact force as a load, whereby the ultrafine particle brittle material is crushed and...
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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...
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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...
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7903910 |
Coupled optical waveguide resonators with heaters for thermo-optic control of wavelength and compound filter shape
An integrated optical device is disclosed comprising a substrate, optical waveguide, and compound optical resonator having a temperature sensor, at least two coupled optical resonators, and a...
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7873329 |
Transceiver having mixer/filter within receiving/transmitting cavity
A transceiver capable of processing signals having wavelengths of less than 1 millimeter and/or more than 1 millimeter comprising a mixer/filter circuit coupled to an IF filter where said...
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7865053 |
Multi-semiconductor slab electro-optic modulator and process for using the same
In one embodiment, the apparatus includes a substrate having a surface and an optical waveguide having a ridge-shaped semiconductor optical core, the ridge-shaped semiconductor optical core being...
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7848601 |
Integrated optical latch
Techniques are disclosed for optical switching and data control, without the interaction of electronic switching speeds. In one example embodiment, a common cavity optical latch is provided that...
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7831358 |
Arrangement and method for obtaining information using phase difference of modulated illumination
Land-based vehicle including an arrangement for monitoring objects in or about a vehicle includes a source from which modulated illumination is emitted into an area in or about the vehicle, a...
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7831113 |
Optical pulse position modulator with chirp compensation
An optical pulse position modulator includes a substrate with parallel first and second sides, the substrate including a first waveguide channel and a parallel second waveguide channel orthogonal...
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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...
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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....
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RE41748 |
Tunable bragg grating and devices employing the same
The present invention relates generally to electro-optically active waveguide segments, and more particularly to the use of a selective voltage input to control the phase, frequency and/or...
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7801189 |
Cross modulation-based opto-electronic oscillator with tunable electro-optic optical whispering gallery mode resonator
Examples and implementations of photonic devices and techniques based on whispering gallery mode resonators formed of electro-optic materials to effectuate cross modulation between whispering...
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7787714 |
Optical modulators
An object of the present invention is to widen the band of the velocity matching frequency as well as to reduce the electrode loss in the modulation electrode. An optical modulator has a substrate...
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7782520 |
Duobinary modulation with a lumped-element Mach-Zehnder device
Duobinary and NRZ modulation of an X-Gb/s optical signal is achieved with a lumped element InP Mach-Zehnder device configured to operate at X/k-Gb/s where k>1 and arranged in a push-pull...
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7772551 |
Refractive index variable element and method of varying refractive index
A refractive index variable element includes a structure including quantum dots having discrete energy levels and a dielectric matrix surrounding the quantum dots, and an electron injector...
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7764851 |
Optical modulators
An optical modulator has an optical waveguide substrate having a pair of principal surfaces, a pair of side surfaces an incident face and exit face of light, the substrate being composed of a...
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7760970 |
Single photon absorption all-optical modulator in silicon
A single-photon absorption all-optical modulator, systems employing the same, and methods of making and using the same. An illustrative example is provided based on silicon semiconductor technology...
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7756367 |
Photonic systems and methods for encoding data in carrier electromagnetic waves
Various embodiments of the present invention are related to photonic systems and methods that can be used to encode data in carrier electromagnetic waves. In one embodiment of the present...
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7756376 |
Optical functional waveguide, optical modulator, arrayed waveguide grating, and dispersion compensation circuit
An optical functional waveguide having a small size, used with stored energy, controlling the phase of light at high speed, and adjusting the optical path length. The optical functional waveguide...
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7738745 |
Method of biasing and operating electro-optic polymer optical modulators
A method that includes (a) thermally biasing an electro-optic polymer device using an electrode; and (b) driving the electro-optic polymer device by applying a high frequency signal to the device...
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7729575 |
Plasmon router
A variety of structures, methods, systems, and configuration scan support plasmons for routing.
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7724999 |
Electro-optical device
An electro-optical device having a non-volatile programmable refractive index. The device includes: a waveguiding structure with waveguiding material, the waveguiding structure defining an optical...
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7720319 |
Regression and erosion measurement system and method
A method and system for determining the length of collocated waveguides in a high erosion environment, such as a solid rocket motor or a braking system. The system provides for mating optical...
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7715663 |
Integrated optical latch
Techniques are disclosed for optical switching and data control, without the interaction of electronic switching speeds. In one example embodiment, a common cavity optical latch is provided that...
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7711213 |
Nanowire-based modulators
Various embodiments of the present invention are directed to nanowire-based modulators that can be used to encode information in a carrier channel of electromagnetic radiation. In one embodiment of...
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7711215 |
Optical amplitude modulation system capable of cancelling high order component
It is an object of the present invention to provide a DSB-SC system capable of suppressing a third order component. The DSB-SC modulation having high extinction ratio can be realized by adjusting...
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7701630 |
External optical modulator with domain inversion for providing constant chip versus frequency
The invention relates to an external optical modulator comprising a Mach-Zehnder having a signal electrode including at least four sections of unequal length to one another positioned over an...
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7700936 |
Fabrication of quantum dots embedded in three-dimensional photonic crystal lattice
In one embodiment, a method of producing an optoelectronic nanostructure includes preparing a substrate; providing a quantum well layer on the substrate; etching a volume of the substrate to...
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7697793 |
Silicon modulator offset tuning arrangement
A silicon-based optical modulator structure includes one or more separate localized heating elements for changing the refractive index of an associated portion of the structure and thereby...
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7693356 |
Lithium niobate optical modulator
An optical modulator comprises a Z-cut lithium niobate substrate on which is formed a Mach-Zehnder interferometer having two generally parallel waveguides lying beneath a buffer layer of dielectric...
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7693355 |
Hybrid electro-optic polymer/sol-gel modulator
A hybrid 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 ...
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