Hewlett-packard Development Company, L.p.

Telefonaktiebolaget Lm Ericsson (publ)

Hewlett Packard Enterprise Development LP

Institutet for Optisk Forskning

Lars Helge Thylen

Shih-Yuan Wang

Michael Renne Ty Tan

Alexandre M Bratkovski

Michael Josef Stuke

Wayne V Sorin

Zhiyong Li

Sagi Varghese Mathai

Wei Guang Wu

Min Hu

Fung Suong Ou

Joaquin Matres Abril

Joaquin Matres

Richard Stanley Williams

Raymond G Beausoleil

Marco Fiorentino

Charles Santori

Zhihong Huang

Victor Marcel Acosta

Anders G Djupsjobacka

Kai-Mei Camilla Fu

Andrei Faraon

Leif G Stensland

Sven A Persson

Per-Ola Andersson

Gunnar Arvidsson

Petter Holmstrom

Thomas Palm

In the examples provided herein, a system includes an input waveguide, where a first end of the input waveguide is coupled to a light-emitting optical transmitter to allow the emitted light to enter the input waveguide, and a first ring resonator tunable to be resonant at a first resonant wavelength, wherein the first ring resonator is positioned near the input waveguide to couple a light at the first resonant wavelength from the input waveguide to the first ring resonator. The system also has a bus waveguide positioned to couple the light at the first resonant wavelength in the first ring resonator to the bus waveguide, and a mechanism to wavelength-tune the first ring resonator to a particular wavelength.

Tunable ring resonator multiplexers

According to one example, the present application discloses an optical circuit comprising a grating to receive input light of mixed polarizations and output light of a same polarization to a first waveguide and a second waveguide. The first waveguide and second waveguide are optically coupled to a plurality of resonators that are coupled to a plurality of gratings that are to output light of mixed polarizations.

Optical circuits and optical switches

In the examples provided herein, a system includes a loop waveguide; and a grating coupler formed on the loop waveguide to couple light impinging on the grating coupler having a first polarization into the loop waveguide in a first direction, and to couple light having a second polarization, orthogonal to the first polarization, into the loop waveguide in a second direction. The system also includes a ring resonator positioned near the loop waveguide tuned to have a resonant wavelength at a first wavelength to couple light at the first wavelength out of the loop waveguide into the ring resonator. An output waveguide positioned near the ring resonator couples light out of the ring resonator into the output waveguide; and a photodetector detects light propagating out of a first end and a second end of the output waveguide.

Polarization diverse ring resonator receivers

A nanoparticle waveguide apparatus, a nanoparticle waveguide photonic system and a method of photonic transmission employ a nearfield-coupled nanoparticle (NCN) waveguide to cooperatively propagate an optical signal. The nanoparticle waveguide apparatus includes a first optical waveguide adjacent to a second optical waveguide, the first optical waveguide comprising an NCN waveguide having a plurality of nanoparticles. The nanoparticle waveguide photonic system further includes a nearfield coupling (NC) modulator. The method includes providing the NCN waveguides and modulating a coupling between one or both of first and second NCN waveguides and adjacent nanoparticles within one or both of the first and second NCN waveguides.

Nanoparticle waveguide apparatus, system and method

A slot-line waveguide optical switch system and method are disclosed. An optical switch system can include a slot-line waveguide optical switch that includes a plurality of wall portions that are each formed from a high refractive-index material and that are arranged to form a channel portion comprising an electro-optic material interposed to extend between the plurality of wall portions. The channel portion can include an input channel to receive an input optical signal and plural output channels to receive the input optical signal from the input channel. A channel switching system can provide a voltage to an electrode coupled to a corresponding wall portion to change a relative refractive index in the output channels via the electro-optic material and thereby switch the input optical signal to one of the output channels.

Slot-line waveguide optical switch system and method

A quantum device includes a resonator and a tuning structure. The tuning structure is made a material such as a chalcogenide and is positioned to interact with the electromagnetic radiation in the resonator so that a resonant mode of the first resonator depends on a characteristic of the tuning structure. The resonator is optically coupled so that a transition between quantum states associated with a defect produces electromagnetic radiation in the resonator. The characteristic of the tuning structure is adjustable after fabrication of the resonator and the tuning structure.

Quantum optical device

A method includes fabricating a circuit element and a connection to the circuit element for a photonic integrated circuit. The method includes associating a configurable material with the circuit element and activating the configurable material via a poling rail and the connection to the circuit element during production of the integrated circuit.

Process poling for material configuration

An apparatus for performing surface enhanced Raman spectroscopy (SERS) includes a substrate and a plurality of nano-pillars, each of the plurality of nano-pillars having a first end attached to the substrate, a second end located distally from the substrate, and a body portion extending between the first end and the second end, in which the plurality of nano-pillars are arranged in an array on the substrate, and in which each of the plurality of nano-pillars is formed of a polymer material that is functionalized to expand in the presence of a fluid to cause gaps between the plurality of nano-pillars to shrink when the fluid is supplied onto the nano-pillars.

Apparatus for performing SERS

A covert label structure comprising a three dimensional diffracting optical element layer () having a depth profile for producing a predetermined pattern, wherein different portions of a top surface of the diffracting optical element layer () have at least two different depths relative to a bottom surface of the diffracting optical element layer (), wherein the depth profile spans across two dimensions of the top surface of the diffracting optical element layer (), and wherein the top surface reflects light according to the predefined pattern and an overcoat layer () over the top surface of the diffracting optical element layer () wherein the overcoat layer () is opaque to at least one wavelength of light.

Covert label structure

A device for Surface Enhanced Raman Scattering (SERS). The device includes a plurality of nanostructures protruding from a surface of a substrate, a SERS active metal disposed on a portion of said plurality of nanostructures, and a low friction film disposed over the plurality of nanostructures and the SERS active metal. The low friction film is to prevent adhesion between the plurality of nanostructures.

Preventing adhesion between nanostructures

An optoelectronic memory cell has a transparent top electrode, a photoactive layer, a latching layer, and a bottom electrode. The photoactive layer absorbs photons transmitted through the top electrode and generates charge carriers. During light exposure, the latching layer changes its resistance under an applied electric field in response to the generation of charge carriers in the photoactive layer.

Optoelectronic light exposure memory

An apparatus for performing SERS includes a substrate and flexible nano-fingers, each of the nano-fingers having a first end attached to the substrate, a free second end, and a body portion extending between the first end and the second end, in which the nano-fingers are arranged in an array on the substrate. The apparatus also includes an active material layer disposed on each of the second ends of the plurality of nano-fingers, in which the nano-fingers are to be in a substantially collapsed state in which the active layers on at least two of the nano-fingers contact each other under dominant attractive forces between the plurality of nano-fingers and in which the active material layers are to repel each other when the active material layers are electrostatically charged.

A semiconductor structure includes a substrate, a thermally and electrically conductive mask positioned upon the substrate, and an epitaxial lateral over growth (ELOG) material positioned upon the thermally and electrically conductive mask.

Semiconductor structure having an ELOG on a thermally and electrically conductive mask

A logic circuit having at least a first input terminal and at least a first output terminal, comprises at least a first and a second electron-wave Y-branch switch, each having a source, a first drain, a second drain, and at least a first gate for switching a source current between the first and the second drain. The sources of said first and second Y-branch switches are adapted to be connected to a high voltage supply and a low voltage supply, respectively. The first gates of said first and second Y-branch switches are interconnected, and the interconnection point between said first gates constitutes said first input terminal. The first drain of the first Y-branch switch is connected to the second drain of the second Y-branch switch, and the second drain of the first Y-branch switch is connected to the first drain of the second Y-branch switch. The interconnection point between said second drain of the first Y-branch switch and said first drain of the second Y-branch switch constitutes said first output terminal.

Growing community of inventors

Huddinge, Sweden

Lars Helge Thylen