Nederlandse Organisatie Voor Toegepast-natuurwetenschappelijk Onderzoek Tno

Robert Karl Altmann

Paul Louis Maria Joseph Van Neer

Peter Johan Harmsma

Daniele Piras

Maurits Sebastiaan Van Der Heiden

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.

Growing community of inventors

Abcoude, Netherlands

Robert Karl Altmann