Abstract: A micro electromechanical systems (MEMS) sensor is excited. The response of the MEMS sensor is measured. The MEMS sensor is calibrated.

Abstract: Systems and a method for routing optical signals are disclosed. One system includes a first large core hollow metal waveguide configured to guide a substantially coherent optical beam. A second large core hollow waveguide is optically coupled to the first waveguide with a coupling device. The coupling device is configured to divide the coherent optical beam into a transmitted beam and a reflected beam. Beam walk-off within the coupling device causes the transmitted beam to be shifted by an offset amount. The second large core hollow metal waveguide is shifted from the first large core hollow metal waveguide by approximately the offset amount to receive the shifted transmitted beam.

Abstract: An optical splitter device and method are provided. The device can include a waveguide having walls forming a large hollow core. The waveguide can be configured to direct an optical signal through the large hollow core. An optical tap can be formed through at least one wall of the waveguide. In addition, a prism can be located in the large hollow core of the waveguide and aligned with the optical tap. A splitter coating can be provided on the prism to direct a portion of the optical signal outside of the waveguide through the optical tap.

Abstract: A micro electromechanical systems (MEMS) sensor is excited. The response of the MEMS sensor is measured. The MEMS sensor is calibrated.

Abstract: An optical interconnect includes a set of splitters. Each splitter includes a source waveguide, a reflection waveguide, an output waveguide, and a partially reflective mirror element with a reflective coating. The source waveguide and the reflection waveguide are optically coupled to the partially reflective element. A photonic signal from the source waveguide is partially reflected off the reflective coating as a reflected signal into the reflection waveguide. The output waveguide is optically coupled to the opposite surface and configured such that a non-reflected portion of the photonic signal propagates into the output waveguide. The reflective coating includes a reflected surface area interfacing with the photonic signal form the source waveguide, and power of the non-reflected portion is a function of the reflective surface area interfacing with source waveguide.

Abstract: An accelerometer can include a support structure having situated thereupon a stator electrode array including multiple stator electrodes (e.g., A, B, and C); and a proof mass positioned parallel to the stator electrode array and capable of displacement parallel thereto. A translator electrode array facing the stator electrode array can comprise multiple translator electrodes (e.g., a and b) can be situated on the proof mass. Further included is a drive circuitry to apply drive voltages to six capacitances formed by the stator and translator electrodes. The total force exerted on the proof mass by the drive voltages is held constant at about zero.

Abstract: Systems and a method for routing optical signals are disclosed. One system includes a first large core hollow metal waveguide configured to guide a substantially coherent optical beam. A second large core hollow waveguide is optically coupled to the first waveguide with a coupling device. The coupling device is configured to divide the coherent optical beam into a transmitted beam and a reflected beam. Beam walk-off within the coupling device causes the transmitted beam to be shifted by an offset amount. The second large core hollow metal waveguide is shifted from the first large core hollow metal waveguide by approximately the offset amount to receive the shifted transmitted beam.

Abstract: An optical interconnect includes a set of splitters. Each splitter includes a source waveguide, a reflection waveguide, an output waveguide, and a partially reflective mirror element with a reflective coating. The source waveguide and the reflection waveguide are optically coupled to the partially reflective element. A photonic signal from the source waveguide is partially reflected off the reflective coating as a reflected signal into the reflection waveguide. The output waveguide is optically coupled to the opposite surface and configured such that a non-reflected portion of the photonic signal propagates into the output waveguide. The reflective coating includes a reflected surface area interfacing with the photonic signal form the source waveguide, and power of the non-reflected portion is a function of the reflective surface area interfacing with source waveguide.

Abstract: An optical splitter device and method are provided. The device can include a waveguide having walls forming a large hollow core. The waveguide can be configured to direct an optical signal through the large hollow core. An optical tap can be formed through at least one wall of the waveguide. In addition, a prism can be located in the large hollow core of the waveguide and aligned with the optical tap. A splitter coating can be provided on the prism to direct a portion of the optical signal outside of the waveguide through the optical tap.

Abstract: Methods for making a photonic guiding system for directing coherent light are disclosed. The methods include forming a channel in a host layer using at least one process of sawing, laser ablation, laser direct write of a photoresist, photo-structuring, and etching. A layer of highly reflective material is applied to substantially cover an interior of the channel. A cover having a layer of highly reflective material is coupled over the channel to form a large core hollow waveguide.

Abstract: One aspect is a drop detection arrangement including a light source for projecting a light beam for scattering light off of an ejected drop. The arrangement includes a light collector configured to collect the scattered light off the ejected drop and a light detector coupled to the light collector and configured to process scattered light into an output signal. The arrangement includes a controller configured to receive the output signal from the light detector. The output signal is indicative of the condition of the ejected drop.

Abstract: Various embodiments of the present invention are directed to self-authenticating, quantum random bit generators that can be integrated into an optoelectronic circuit. In one embodiment, a quantum random bit generator comprises a transmission layer that includes an electromagnetic radiation source coupled to a waveguide branching into a first, second, and third waveguides. The radiation source generates pulses of electromagnetic radiation in a first polarization state. Polarization rotators are operably coupled to the second and third waveguides and rotate pulses transmitted in the second waveguide into a second polarization state and rotate pulses transmitted in the third waveguide into a third polarization state. The system control generates a sequence of bits based on polarization basis states of the pulses transmitted in the first waveguide, and tomographically authenticates randomness of the sequence based on polarization basis states of the second and third pulses.

Abstract: A daisy-chain optical interconnection technique provides connectivity among a plurality of circuit boards. A plurality of optical cables is connected between pairs of the circuit boards to form a ring. Optical connection matrices disposed on each circuit board accept the ends of the optical cables. The optical connection matrices include optical vias to connect selected ones of the optical paths between ends of the optical cables. Unselected ones of the optical paths are coupled to optical transmitters and optical receivers on each board.

Abstract: One aspect is a drop detection arrangement including a light source for projecting a light beam for scattering light off of an ejected drop. The arrangement includes a light collector configured to collect the scattered light off the ejected drop and a light detector coupled to the light collector and configured to process scattered light into an output signal. The arrangement includes a controller configured to receive the output signal from the light detector. The output signal is indicative of the condition of the ejected drop.

Abstract: A daisy-chain optical interconnection technique provides connectivity among a plurality of circuit boards. A plurality of optical cables is connected between pairs of the circuit boards to form a ring. Optical connection matrices disposed on each circuit board accept the ends of the optical cables. The optical connection matrices include optical vias to connect selected ones of the optical paths between ends of the optical cables. Unselected ones of the optical paths are coupled to optical transmitters and optical receivers on each board.

Abstract: Various embodiments of the present invention are directed to self-authenticating, quantum random bit generators that can be integrated into an optoelectronic circuit. In one embodiment, a quantum random bit generator comprises a transmission layer that includes an electromagnetic radiation source coupled to a waveguide branching into a first, second, and third waveguides. The radiation source generates pulses of electromagnetic radiation in a first polarization state. Polarization rotators are operably coupled to the second and third waveguides and rotate pulses transmitted in the second waveguide into a second polarization state and rotate pulses transmitted in the third waveguide into a third polarization state. The system control generates a sequence of bits based on polarization basis states of the pulses transmitted in the first waveguide, and tomographically authenticates randomness of the sequence based on polarization basis states of the second and third pulses.

Abstract: Embodiments of methods, apparatuses, devices, or systems for forming a photonic device are described.

Abstract: In one embodiment, a method includes forming an array of recesses in a substrate, depositing spacer material in the recesses, forming photonic elements on the spacer material, and separating the structure previously formed into individual dies that each include a photonic element, spacer material and substrate.

Abstract: A storage device and a storage system employing the storage device. In one embodiment, the storage device comprises an electron emitter and a storage medium comprising an information layer having at least a first state and a second state for storing information. The storage device comprises a resistance measurement system coupled to the storage medium for reading the information stored at the information layer by measuring resistance to determine a state of a storage area on the information layer.