Imec Vzw

Samsung Electronics Co., Ltd.

Universiteit Gent

Cerence Operating Company

Imec

Tom Claes

Xavier Rottenberg

Peter Bienstman

Seongho Cho

Dongho Kim

Richard Stahl

Holger Quast

Wim Bogaerts

Dries Vercruysse

Bart D'hoore

Markus Funk

Dino Seppi

Christoph Halboth

Christophe Ris

Pol Van Dorpe

Andy Lambrechts

Sung Mo Ahn

Geert Vanmeerbeeck

Woo Chang Lee

Katrien De Vos

Jan-Willem Hoste

Rita Van Hoof

Gillis Winderickx

A voice-based system is configured to process commands in a flexible format, for example, in which a wake word does not necessarily have to occur at the beginning of an utterance. As in natural speech, the system being addressed may be named within or at the end of a spoken utterance rather than at the beginning, or depending on the context, may not be named at all.

Flexible-format voice command

An integrated photonic device may include an image detector that comprises an array of pixels. The device may further include an integrated waveguide and a light coupler comprising a light receiving part optically coupled to the integrated waveguide for receiving a light signal. The light coupler may be adapted for coupling a same predetermined spectral band of the light signal to each of a plurality of pixels of the image detector. The light coupler may include a tapered portion, in which the light coupler tapers outward in a direction of propagation, and an end part comprising an elliptically shaped back reflector for reflecting light propagating along the direction of propagation back through the light coupler toward the integrated waveguide.

Photonic circuit with integrated light coupler

Provided are a dual coupler device configured to receive lights of different polarization components, a spectrometer including the dual coupler device, and a non-invasive biometric sensor including the spectrometer. The dual coupler device may include, for example, a first coupler layer configured to receive a light of a first polarization component among incident lights. and a second coupler layer configured to receive a light of a second polarization component among the incident lights, wherein a polarization direction of the light of the first polarization component is perpendicular to a polarization direction of the light of the second polarization component. The first coupler layer and the second coupler layer may be spaced apart from each other and extended along a direction in which the light propagates in the first coupler layer and the second coupler layer.

Dual coupler device, spectrometer including the dual coupler device, and non-invasive biometric sensor including the spectrometer

Embodiments described herein relate to a large area lens-free imaging device. One example is a lens-free device for imaging one or more objects. The lens-free device includes a light source positioned for illuminating at least one object. The lens-free device also includes a detector positioned for recording interference patterns of the illuminated at least one object. The light source includes a plurality of light emitters that are positioned and configured to create a controlled light wavefront for performing lens-free imaging.

Large area lens-free imaging device

A spectrometer is provided. The spectrometer may include an image sensor including a pixel array; and a photonics layer disposed on the pixel array and including a plurality of resonators and a plurality of couplers evanescently coupled to the plurality of resonators.

Spectrometer and apparatus for measuring biological component using the same

Embodiments described herein relate to a light coupler, a photonic integrated circuit, and a method for manufacturing a light coupler. The light coupler is for optically coupling to an integrated waveguide and for out-coupling a light signal propagating in the integrated waveguide into free space. The light coupler includes a plurality of microstructures. The plurality of microstructures is adapted in shape and position to compensate decay of the light signal when propagating in the light coupler. The plurality of microstructures is also adapted in shape and position to provide a power distribution of the light signal when coupled into free space such that the power distribution corresponds to a predetermined target power distribution. Each of the microstructures forms an optical scattering center. The microstructures are positioned on the light coupler in accordance with a non-uniform number density distribution.

Light coupler with microstructures asymmetrically distributed along longitudinal axis

An example embodiment relates to a photonic integrated circuit device and a method for its manufacture. An example device includes a planar detector having at least one photodetector. The device may further include a waveguide layer arranged substantially parallel to the planar detector, the waveguide layer including a first integrated waveguide for guiding a first light signal. A cavity may be formed in the waveguide layer in a region spaced away from the edges of the waveguide layer such as to terminate the first integrated waveguide in that region. A first reflective surface may be provided in the cavity to reflect the first light signal guided by the first integrated waveguide toward a first photodetector of the planar detector.

Photonic circuit light coupler

An example embodiment may include an interferometer. The interferometer may include a multimode waveguide with an input waveguide optically coupled to a first side of the multimode waveguide, for feeding a light signal to the multimode waveguide. The interferometer may also include a first waveguide at one end optically coupled to a second side of the multimode waveguide, and at the other end terminated by a first waveguide mirror. The interferometer may also include a second waveguide at one end optically coupled to the second side of the multimode waveguide and at the other end terminated by a second waveguide mirror. The multimode waveguide may be adapted to distribute the light signal towards the first and second waveguide mirror via the first waveguide and via the second waveguide.

Compact interferometer

Embodiments described herein relate to an imaging device, a method for imaging an object, and a photonic integrated circuit. The imaging device includes at least one photonic integrated circuit. The photonic integrated circuit includes an integrated waveguide for guiding a light signal. The photonic integrated circuit also includes a light coupler optically coupled to the integrated waveguide. The light coupler is adapted for directing the light signal out of a plane of the integrated waveguide as a light beam. The imaging device also includes a microfluidic channel for containing an object immersed in a fluid medium. The microfluidic channel is configured to enable, in operation of the imaging device, illumination of the object by the light beam. In addition, the imaging device includes at least one imaging detector positioned for imaging the object illuminated by the light beam.

Device and method for performing lens-free imaging

A photonics integrated system is disclosed, comprising a substrate, an integrated interferometer integrated in the substrate and being configured for receiving radiation from a radiation source, and an integrated spectral filter integrated in the substrate and being configured for receiving radiation from the interferometer. The integrated interferometer has a period and the integrated spectral filter has a bandwidth such that the period of the integrated interferometer is smaller than the bandwidth of the integrated spectral filter. The integrated spectral filter has a periodic transfer characteristic with a period and the system has a bandwidth such that the period of the periodic transfer characteristic of the integrated spectral filter is larger than the bandwidth of the system.

Photonics integrated interferometric system and method

A sensing device for sensing a substance includes a photonics integrated circuit having a resonator element that supports two different radiation modes, e.g. radiation modes of different polarisation, at a predetermined resonance wavelength. The resonator element is configured to convert a phase change or amplitude change experienced by the two different radiation modes upon formation of a layer of receptor molecules onto a sensing surface of the device into a resonance wavelength shift for the two different radiation modes. The sensing device also includes a detection unit arranged to detect the resonance wavelength shift for the two different radiation modes. The detection unit includes a processor that is configured to derive from the detected resonance wavelength shifts for the two different radiation modes, a layer thickness and refractive index of the layer of receptor molecules.

Methods and systems for sensing

Quantifying a refractive index of a test medium by obtaining spectral data representative for an optical signal being modulated with an optical transfer characteristics of a photonic sensor, the modulation being obtained by combining modulation of a first electromagnetic wave component in an optical filter element with a first periodic transfer spectrum having a first free spectral range and modulation of a second electromagnetic wave component in an optical filter element with a second periodic transfer spectrum having a second free spectral range being different from the first free spectral range. A relative is change induced in the second periodic transfer spectrum by bringing the test medium in proximity with the optical filter element with the second periodic transfer spectrum. The refractive index of the test medium is quantified by determining a wavelength offset of an envelope signal in said spectral data.

Growing community of inventors

Merelbeke, Belgium

Tom Claes