Abstract: A ring resonator electro-optical device includes a first silicon nitride waveguide and a second annular silicon waveguide that comprises a first section running under a second section of the first waveguide. The second waveguide also includes an annular silicon strip having a cross-section increasing in the first section from a minimum cross-section located under the second section.

Abstract: Method for manufacturing micro-LEDs comprising the following steps: i) providing a stack comprising at least one strongly n-doped GaN layer (104), an n-doped GaN layer (105), quantum wells (106) and a p-doped GaN layer (107), ii) porosifying the GaN layer (104), to obtain a porosified GaN layer (104?), iii) forming mesas in the stack, iv) covering the porosified GaN layer (104?) with a second electrode (301) or with an encapsulation layer (302), the second electrode (301) or the encapsulation layer (302) being in direct contact with the porosified GaN layer (104?). step ii) being carried out so that the optical index of the porosified GaN layer (104?) does not vary by more than 10% with respect to the optical index of the second electrode (301) and/or with respect to the optical index of the encapsulation layer (302).

Abstract: An optoelectronic system includes a photoelectric transducer to emit or receive optical waves and a waveguide to guide waves emitted by the transducer or to guide waves to the transducer, includes a stack successively including a porous first layer of first type doped semiconductor material, a second layer of first type doped semiconductor material doped and lightly doped, a zone including quantum wells, a third layer of semiconductor material doped according to a second doping type opposite to the first type, the photoelectric transducer including a first portion of the porous first layer, a first portion of the second layer, at least a first portion of the zone including the quantum well(s) and at least a first portion of the third layer; the waveguide including a second portion of the second layer adjacent to the first portion and disposed on a second portion of the porous first layer.

Abstract: An optical system includes a substrate and, being formed on the substrate, a reflective structure including a first inner reflection face with a parabolic profile, a second inner planar reflection face and a third inner planar reflection face, a photoelectric transducer including an active region configured to emit light waves or configured to receive light waves and positioned in the reflective structure, at a part of the foci, the material of the reflective structure being chosen to be transparent to the light waves, a waveguide arranged so that its longitudinal axis is parallel to the optical axes and its proximal end is adjoining the reflective structure between the second and third reflection faces and at the active region.

Abstract: A ring resonator electro-optical device includes a first silicon nitride waveguide and a second annular silicon waveguide that comprises a first section running under a second section of the first waveguide. The second waveguide also includes an annular silicon strip having a cross-section increasing in the first section from a minimum cross-section located under the second section.

Abstract: A device, includes: a ring waveguide; a diode comprising a junction extending at least partly in the ring waveguide; and a first circuit configured to supply a signal representative of a leakage current in the diode.

Abstract: A ring resonator electro-optical device includes a first silicon nitride waveguide and a second annular silicon waveguide that comprises a first section running under a second section of the first waveguide. The second waveguide also includes an annular silicon strip having a cross-section increasing in the first section from a minimum cross-section located under the second section.

Abstract: An elementary photonic interconnect switch is integrated into an optoelectronic chip and includes four simple photonic interconnect switches. Each simple photonic interconnect switch has two optical waveguides that cross and are linked by a ring resonator having one ring. A basic photonic interconnect switch, a complex photonic interconnect switch and/or a photonic interconnect network are integrated into an optoelectronic chip and including at least two elementary photonic interconnect switches.

Abstract: A device, includes: a ring waveguide; a diode comprising a junction extending at least partly in the ring waveguide; and a first circuit configured to supply a signal representative of a leakage current in the diode.

Abstract: A device, includes: a ring waveguide; a diode comprising a junction extending at least partly in the ring waveguide; and a first circuit configured to supply a signal representative of a leakage current in the diode.

Abstract: A photonic interconnect switch is formed by first and second linear optical waveguides that cross to form an intersection. First and second redirecting photonic ring resonators are coupled together in an intermediate optical coupling zone and are controllable with an electrical signal. The first ring resonator is coupled to the first optical waveguide in a first optical coupling zone. The second ring resonator is coupled to the second optical waveguide in a second optical coupling zone.

Abstract: A ring resonator electro-optical device includes a first silicon nitride waveguide and a second annular silicon waveguide that comprises a first section running under a second section of the first waveguide. The second waveguide also includes an annular silicon strip having a cross-section increasing in the first section from a minimum cross-section located under the second section.

Abstract: A device, includes: a ring waveguide; a diode comprising a junction extending at least partly in the ring waveguide; and a first circuit configured to supply a signal representative of a leakage current in the diode.

Abstract: A photonic interconnection elementary switch is integrated in an optoelectronic chip/The switch includes first and second linear optical waveguides which intersect to form a first intersection. Two first photonic redirect ring resonators are respectively coupled to the first and second optical waveguides. Two second photonic redirect ring resonators are respectively coupled to the first and second optical waveguides. A third linear optical waveguide is coupled to one of the first ring resonators and one of the second ring resonators. A fourth linear optical waveguide is coupled to another of the first resonators and to another of the second ring resonators. A base switch, complex switch, and photonic interconnection network integrated in an optoelectronic chip, include at least two of the photonic interconnection elementary switches.

Abstract: An elementary photonic interconnect switch is integrated into an optoelectronic chip and includes four simple photonic interconnect switches. Each simple photonic interconnect switch has two optical waveguides that cross and are linked by a ring resonator having one ring. A basic photonic interconnect switch, a complex photonic interconnect switch and/or a photonic interconnect network are integrated into an optoelectronic chip and including at least two elementary photonic interconnect switches.

Abstract: A photonic interconnection elementary switch is integrated in an optoelectronic chip/The switch includes first and second linear optical waveguides which intersect to form a first intersection. Two first photonic redirect ring resonators are respectively coupled to the first and second optical waveguides. Two second photonic redirect ring resonators are respectively coupled to the first and second optical waveguides. A third linear optical waveguide is coupled to one of the first ring resonators and one of the second ring resonators. A fourth linear optical waveguide is coupled to another of the first resonators and to another of the second ring resonators. A base switch, complex switch, and photonic interconnection network integrated in an optoelectronic chip, include at least two of the photonic interconnection elementary switches.

Abstract: A photonic interconnect switch is formed by first and second linear optical waveguides that cross to form an intersection. First and second redirecting photonic ring resonators are coupled together in an intermediate optical coupling zone and are controllable with an electrical signal. The first ring resonator is coupled to the first optical waveguide in a first optical coupling zone. The second ring resonator is coupled to the second optical waveguide in a second optical coupling zone.