Abstract:
Described herein is a hybrid III-V Silicon laser comprising a first semiconductor region including layers of semiconductor materials from group III, group IV, or group V semiconductor to form an active region; and a second semiconductor region having a silicon waveguide and bonded to the first semiconductor region via direct bonding at room temperature of a layer of the first semiconductor region to a layer of the second semiconductor region.
Abstract:
Techniques and architectures for providing a reflective target area of an integrated circuit die assembly. In an embodiment, a reflective bevel surface of a die allows an optical signal to be received from the direction of a side surface of a die assembly for reflection into a photodetector. In another embodiment, one or more grooves in a coupling surface of the die provide respective leverage points for aligning a target area of the bevel surface with a detecting surface of the photodetector.
Abstract:
Microelectronic packages are disclosed. A microelectronic package may include a substrate having first and second sides. Passive components may be located on the first side of the substrate. Interconnects may also be located on the first side of the substrate, and may be electrically coupled with the passive components. Microelectronic components may be located on the first side of the substrate and may be electrically coupled with interconnects. The substrate may include an opening therein. The opening may lead from the second side of the substrate toward the first side of the substrate. A plurality of conductive paths may be at least partially included in the opening. Each of the conductive paths may lead from the second side of the substrate toward the first side of the substrate to communicate electrical signals to interconnects. Methods of making the packages and electronic devices including the packages are also disclosed.
Abstract:
Embodiments of the present disclosure are directed towards techniques and configurations for MEMS sensing device configured to determine inertial change applied to the device. In one instance, the device may comprise a laser arrangement configured to generate a light beam, and a waveguide configured to split the light beam into two portions. The waveguide may include two arms through which the respective portions of the light beam may respectively pass, and disposed substantially parallel with each other and joined together around their respective ends to recombine the portions into a light beam. One of the arms may be deformable. A deformation of the arm may result in a change of an optical path length of a portion of the light beam traveling through the arm, causing a detectable change in light intensity of the recombined light beam outputted by the waveguide. Other embodiments may be described and/or claimed.
Abstract:
Embodiments of the present disclosure are directed towards a micro-electromechanical system (MEMS) sensing device, including a laser arrangement configured to generate a light beam, a first waveguide configured to receive and output a first portion of the light beam, and a second waveguide having a section that is evanescently coupled to the first waveguide and configured to receive and output a second portion of the light beam. The section of the second waveguide is configured to be movable substantially parallel to the first waveguide, wherein a movement of the section of the second waveguide may be caused by an inertial change applied to the sensing device. The movement of the section may cause a detectable change in light intensity between the first and second portions of the light beam. Based on the detected change, the inertial change may be determined. Other embodiments may be described and/or claimed.
Abstract:
Techniques and mechanisms for a monolithic photonic integrated circuit (PIC) to provide spectrometry functionality. In an embodiment, the PIC comprises a photonic device, a first waveguide and a second waveguide, wherein one of the first waveguide and the second waveguide includes a released portion which is free to move relative to a substrate of the PIC. During a metering cycle to evaluate a material under test, control logic operates an actuator to successively configure a plurality of positions of the released portion relative to the photonic device. In another embodiment, light from the first waveguide is variously diffracted by a grating of the photonic device during the metering cycle, where portions of the light are directed into the second waveguide. Different wavelengths of light diffracted into the second waveguide may be successively detected, for different positions of the released portion, to determine spectrometric measurements over a range of wavelength.
Abstract:
A portion of an optical waveguide extending laterally within a photonic integrated circuit (PIC) chip is at least partially freed from the substrate to allow physical displacement of a released waveguide end relative to the substrate and relative to an adjacent photonic device also fabricated in the substrate. The released waveguide end may be displaced to modulate interaction between the photonic device and an optical mode propagated by the waveguide. In embodiments where the photonic device is an optical coupler, employing for example an Echelle grating or arrayed waveguide grating (AWG), mode propagation through the coupler may be modulated via physical displacement of the released waveguide end. In one such embodiment, thermal sensitivity of an integrated optical wavelength division multiplexer (WDM) is reduced by displacing the released waveguide end relative to the coupler in a manner that counters a temperature dependence of the optical coupler.
Abstract:
Ausführungsformen der vorliegenden Offenbarung betreffen optische Koppler mit niedriger numerischer Apertur (NA) oder Punktgrößenwandler, die einen lateralen Verjüngungsabschnitt und/oder einen vertikalen adiabatischen Verjüngungsabschnitt beinhalten. Bei Ausführungsformen können die optischen Koppler auf einem Siliciumsubstrat in der Nähe von V-Nuten in dem Substrat positioniert sein, um Glasfasern zu enthalten, die selbstauszurichten und mit den optischen Kopplern zu koppeln sind. Andere Ausführungsformen können beschrieben und/oder beansprucht werden.