Abstract: A method for aligning chip regions.

Abstract: The disclosure describes a method for assembling an optical coupler, the method may include (a) inserting optical fibers of an array of optical fibers through an array of openings of a mount of the optical coupler so that tips of the optical fibers pass through the array of openings of the mount and reach an adaptor; wherein the array of openings of the mount exhibit a first positioning accuracy; (b) using the adaptor to position the tips of the optical fibers at predefined locations, at a second positioning accuracy that is higher than the first positioning accuracy; (c) fixing the tips of the optical fibers to the mount while maintaining the tips of the optical fibers at the predefined locations; and (d) detaching the mount from the adaptor.

Abstract: A device and a method for aligning a laser unit to a waveguide unit. The method may include (a) placing the laser unit in a tested position in which the laser unit faces the waveguide unit; (b) supplying light, via a coupler of the waveguide unit, to an alignment waveguide of the waveguide unit; (c) receiving light emitted from the alignment waveguide; wherein the light was emitted as result of the supplying of the light; (d) determining whether the light emitted from the alignment comprises a spectral signature associated with an alignment unit of the laser unit; and (e) estimating whether the laser unit is aligned to the waveguide unit based on the determining of step (d).

Abstract: Some embodiments of the present disclosure describe a tapered waveguide and a method of making the tapered waveguide, wherein the tapered waveguide comprises a first and a second waveguide, wherein the first and second waveguides overlap in a waveguide overlap area. The first and second waveguides have a different size in at least one dimension perpendicular to an intended direction of propagation of electromagnetic radiation through the tapered waveguide. Across the waveguide overlap area, one of the waveguides gradually transitions or tapers into the other.

Abstract: A method for determining a spatial relationship between an optoelectronic chip and an optical mount, the method may include temporarily filling, by a liquid, a gap formed between a lens of the optical mount and the optoelectronic chip, while the optical mount contacts the optoelectronic chip; inspecting an optical component of the optoelectronic chip through the lens and through the liquid that fills the gap; and determining the spatial relationship between the optoelectronic chip and the optical mount based on the outcome of the inspecting of the optical component.

Abstract: A method for determining a spatial relationship between an optoelectronic chip and an optical mount, the method may include temporarily filling, by a liquid, a gap formed between a lens of the optical mount and the optoelectronic chip, while the optical mount contacts the optoelectronic chip; inspecting an optical component of the optoelectronic chip through the lens and through the liquid that fills the gap; and determining the spatial relationship between the optoelectronic chip and the optical mount based on the outcome of the inspecting of the optical component.

Abstract: Embodiments may relate to a silicon photonic chip, and particularly a back absorber within the silicon photonic chip. The back absorber may include a substrate material with a slab portion that includes a doped portion of the substrate material. The back absorber may be positioned at the backside of a laser that is configured to project light along a waveguide of the silicon photonic chip. Other embodiments may be described or claimed.

Abstract: Some embodiments of the present disclosure describe a tapered waveguide and a method of making the tapered waveguide, wherein the tapered waveguide comprises a first and a second waveguide, wherein the first and second waveguides overlap in a waveguide overlap area. The first and second waveguides have a different size in at least one dimension perpendicular to an intended direction of propagation of electromagnetic radiation through the tapered waveguide. Across the waveguide overlap area, one of the waveguides gradually transitions or tapers into the other.

Abstract: Some embodiments of the present disclosure describe a tapered waveguide and a method of making the tapered waveguide, wherein the tapered waveguide comprises a first and a second waveguide, wherein the first and second waveguides overlap in a waveguide overlap area. The first and second waveguides have a different size in at least one dimension perpendicular to an intended direction of propagation of electromagnetic radiation through the tapered waveguide. Across the waveguide overlap area, one of the waveguides gradually transitions or tapers into the other.

Abstract: Some embodiments of the present disclosure describe a tapered waveguide and a method of making the tapered waveguide, wherein the tapered waveguide comprises a first and a second waveguide, wherein the first and second waveguides overlap in a waveguide overlap area. The first and second waveguides have a different size in at least one dimension perpendicular to an intended direction of propagation of electromagnetic radiation through the tapered waveguide. Across the waveguide overlap area, one of the waveguides gradually transitions or tapers into the other.