Nederlandse Organisatie Voor Toegepast-natuurwetenschappelijk Onderzoek Tno

Delta Diagnostics B.v.

Peter Johan Harmsma

Bart Michiel De Boer

Paul Louis Maria Joseph Van Neer

Daniele Piras

Maurits Sebastiaan Van Der Heiden

Robert Karl Altmann

Teunis Cornelis Van Den Dool

Michiel Peter Oderwald

Anna Tchebotareva

Dario Maria Rosario Lo Cascio

Mirvais Yousefi

The photonic integrated device for converting a light signal into sound comprises—a substrate having a substrate surface, an optical waveguide on the substrate surface, a photo-acoustic conversion body, comprising at least one volume of fractionally light absorbing material or formed entirely of fractionally light absorbing material, wherein a width of the photo-acoustic conversion body is greater than a width of the optical waveguide and means for enhancing distribution of light from the optical waveguide over the photo-acoustic conversion body.

Photonic integrated device for converting a light signal into sound via a solid photo-acoustic converter

The photonic integrated device comprises a substrate, a plurality of mechanical resonator structures on a surface of the substrate, exposed to receive sound waves from outside the device; a plurality of sensing optical waveguides, each sensing optical waveguide at least partly mechanically coupled to at least one of the mechanical resonator structures, or a sensing optical waveguide that is at least partly mechanically coupled to all of the mechanical resonator structures; an input optical waveguide on the surface of the substrate, coupled to the plurality of sensing optical waveguides or the single sensing optical waveguide, for supplying light to the plurality of sensing optical waveguides or the single sensing optical waveguide; at least one output optical waveguide on the surface of the substrate, coupled to the plurality of sensing optical waveguides or the single sensing optical waveguide, for collecting light from the plurality of sensing optical waveguides or the single sensing optical waveguide that has been affected by vibration of plurality of mechanical resonator structures.

Photonic integrated device for converting sound into a modulation of properties of light in the device

The spin-entangled photon emission device comprises a Fabry-Pérot resonator with a solid state optical waveguide integrated on a substrate. Preferably, the device is used in a configuration that makes it possible to tune the resonance wavelength of the Fabry-Pérot resonator by straining or otherwise adjusting the effective optical length of the waveguide. A diamond membrane is located in the Fabry-Pérot resonator. The diamond membrane comprises a photon-source capable of emitting a photon that is entangled with a spin state of the photon source. A first surface of the diamond membrane abuts to a first mirror of the Fabry-Pérot resonator. The optical waveguide has a first end facet bonded to a first surface of the diamond membrane. The first mirror of the Fabry-Pérot resonator is formed by a reflector on the second surface of the diamond membrane. The second mirror of the Fabry-Pérot resonator is formed by a reflector on a second end facet of the optical waveguide or inside the optical waveguide.

Spin-entangled photon emission device

In a method or system for interrogating an optical chip (), the optical chip () is illuminated with input light () and a spatially resolved image () of the output light () is measured from the optical chip (). The output light () is imaged together with a reflection of the input light (). For example, this can be used to establish, improve, or maintain alignment of the input light () on a sensor input port () of the optical chip (). The same detector () measures the spatially resolved image and a spectral response of the optical chip ().

Alignment and readout of optical chips

Methods and instruments for measuring a liquid sample (S) in a well plate () by means of an optical chip. The chip () comprises an optical sensor () that is accessible to the liquid sample (S) at a sampling area (SA) of the chip. A free-space optical coupler () is accessible to receive input light (L) and/or emit output light (L) via a coupling area (CA) of the chip (). The sampling area (SA) of the chipis submerged in the liquid sample (S) while keeping the liquid sample (S) away from the coupling area (CA) for interrogating the optical coupler () via an optical path (P) that does not pass through the liquid sample (S).

Methods and instruments for measuring samples in a well plate

A method and system for measuring a sample property (X) by means of photonic circuit (). The photonic circuit () comprises at least two photonic sensors () configured to modulate the light according to respective output signals (S,S) with periodically recurring signal values (V, V). The photonic sensors () comprise a low range sensor () with a relatively low range or high sensitivity for measuring a change (&#x394;X) of the sample property (X) and a high range sensor () with a relatively high range or low sensitivity to measure the change (&#x394;X) of the sample property (X). The sample property (X) is calculated by combining the output signals (S, S) of the sensors (). Particularly, the second output signal (S) of the high range sensor () is used to distinguish between recurring signal values (V) in the first output signal (S) of the low range sensor ().

Photonic circuit for measuring a sample

The present disclosure concerns a method and apparatus for measuring a sensor () comprising multiple optical resonators () optically connected to a single optical output interface (). The optical resonators () are interrogated with a light input signal (Si). A light output signal (So) is measured from the optic al output interface () to determine a combined spectral response (Sa) covering a wavelength range (W) including a plurality of resonance peaks (&#x3bb;) for each of the optical resonators (). A Fourier transform spectrum (FT) of the combined spectral response (Sa) is calculated and a harmonic series of periodic peaks (n&#xb7;f) is identified in the Fourier transform spectrum (FT). The harmonic series of periodic peaks is filtered to obtain a filtered Fourier transform spectrum (FT) and a sensor signal is calculated (X) based on the filtered Fourier transform spectrum (FT).

Method and system for measuring a sensor

The present disclosure concerns a photonic integrated circuit () and a method for interrogating a ring resonator () comprised therein. The circuit () comprises an optical port () for coupling light (L) into and out of the circuit (). The circuit () further comprises a first waveguide () for receiving light (L) from the optical port (), and a second waveguide () for sending back light to the optical port (). The ring resonator () is arranged between the first waveguide () and the second waveguide () for coupling a resonant wavelength (&#x3bb;) of the light therein between. The optical port () comprises a polarization splitting coupler for coupling light of a first polarization (P) to and from the first waveguide () and coupling light of a second polarization (P), orthogonal to the first polarization (P), to and from the second waveguide ().

System and method associated with a photonic integrated circuit

The present disclosure concerns an apparatus () and method for reading out an optical chip (). A light source () is arranged for emitting single mode source light (S) from its emitter surface (A) towards an optical input () of the optical chip (). A light detector () is arranged for receiving measurement light (S) impinging onto its receiver surface (A) from an optical output () of the optical chip (), and measuring said received measurement light (S). The emitted source light (S) is aligned to enter the optical input () of the optical chip () and the measurement light (S) is aligned back onto the receiver surface (A). The receiver surface (A) is larger than the emitter surface (A) for facilitating the overall alignment.

Apparatus and method for reading out an optical chip

An optical measuring device measures a wavelength of a response from a sensing device. The optical measuring device contains a light path coupled to an interface for coupling the light path to the sensing device. A periodic optical filter has an input coupled to the light path, to sample light that is supplied to or received from the sensing device. A continuous output optical filter has an input coupled the light path to sample light that is supplied to or received from the sensing device. A computation circuit is coupled to detectors at the periodic optical filter and the continuous output optical filter. The computation circuit is programmed to process output signals from the detectors obtained during a wavelength scan. The processing involves quantization of data derived from the continuous filter wavelengths associated with respective time points at which the wavelength scan reaches corresponding positions in respective periods of the periodic optical filter. The processing computes a wavelength associated with the response of the sensing device from the identified wavelengths on the basis of a temporal relation between said respective time points and a time point of the response of the sensing device.

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Vleuten, Netherlands

Peter Johan Harmsma