Abstract: A differential mode delay (DMD) measurement system for an optical fiber is provided. The system includes an optical test fiber with a plurality of modes; a single mode light source that provides a continuous light wave signal to a modulator; and a pulse generator that provides an electrical pulse train signal to the modulator and a triggering signal to a receiver. The modulator is configured to generate a modulated optical test signal through the optical fiber based at least in part on the received light wave and pulse train signals, and the receiver is configured to receive the test signal transmitted through the fiber and evaluate the test signal based at least in part on the triggering signal. The system can be employed to create DMD waveform and centroid charts to obtain minEMBc bandwidth information for a fiber within a wavelength range.

Abstract: A system includes a plurality of different types of fiber optic connectors each having at least one stub optical fiber configured to be spliced to at least one cable optical fiber. The system also includes a tool configured to: a) receive and detect the different types of fiber optic connectors; and b) set a threshold value for an acceptable indication of continuity for at least one splice between the at least one stub optical fiber and the at least one cable optical fiber based on which type of the fiber optic connector is received and detected.

Abstract: The disclosure relates to a fiber optic connectors and sub-assemblies having a retention body for connectorizing a fiber optic cable along with fiber optic connectors and methods'therefor. In one embodiment, the sub-assembly comprises a cable lock comprises a cable channel for receiving a fiber optic cable therethrough, and at least one strength member engagement surface. The retention body comprises an optical fiber channel for receiving an end portion of at least one optical fiber of the fiber optic cable therethrough, and at least one strength member engagement surface. The strength member engagement surfaces of the cable lock and the retention body are configured to cooperate with each other to receive and retain at least one strength member of the fiber optic cable. Other fiber optic connector sub-assemblies are also disclosed.

Abstract: A strain relief assembly for a fiber optic connector includes a support having a front end, a back end, and an internal cavity extending between the front end and the back end. The strain relief assembly also includes a boot extending over at least a portion of the support and rearwardly from the back end. The boot is less rigid than the support and includes an internal passageway communicating with the internal cavity of the support. Additionally, the boot is arranged about a central axis. The boot bulges radially outward from the central axis as the boot extends over the back end of the support.

Abstract: A multiple optical fiber connection apparatus comprises an outer housing to receive a plurality of optical fibers and a collar body disposed within the housing having a fiber comb portion disposed at a front portion of the collar body. The fiber comb portion includes an array of grooves, with each groove configured to guide an optical fiber disposed therein, and a ramp section adjacent the groove array, wherein the ramp section including a gradual rising portion.

Abstract: Embodiments of a glass-based article including a first surface and a second surface opposing the first surface defining a thickness (t) of about 3 millimeters or less (e.g., about 1 millimeter or less), and a stress profile, wherein all points of the stress profile between a thickness range from about 0·t up to 0.3·t and from greater than 0.7·t, comprise a tangent that is less than about ?0.1 MPa/micrometers or greater than about 0.1 MPa/micrometers, are disclosed. In some embodiments, the glass-based article includes a non-zero metal oxide concentration that varies along at least a portion of the thickness (e.g., 0·t to about 0.3·t). In some embodiments, the concentration of metal oxide or alkali metal oxide decreases from the first surface to a point between the first surface and the second surface and increases from the point to the second surface. The concentration of the metal oxide may be about 0.05 mol % or greater or about 0.5 mol % or greater throughout the thickness.

Abstract: Power management techniques in distributed communication systems are disclosed herein. Related components, systems, and methods are also disclosed. In embodiments disclosed herein, services within a remote unit of the distributed communication system are selectively activated and power consumption is measured. From at least two measurements, a maximum power available may be calculated and compared to power requirements of the remote unit.

Abstract: A system for cutting a wet green ceramic article which includes a power device to generate power and a transmission assembly including an input and an output. The input is operably coupled to the power device such that power is transferred through the transmission assembly from the input to the output. The system also includes a cutting tool holder that holds a cutting tool. The cutting tool holder is coupled to the output and pivotally coupled to a pivot point. The output of the transmission assembly pivots the cutting tool holder about the pivot point as the cutting tool reciprocates in a cutting motion between a first position and a second position.

Abstract: Systems and methods for laser-cutting thermally tempered substrates are disclosed. In one embodiment, a method of separating a thermally tempered substrate includes directing a laser beam focal line such that at least a portion of the laser beam focal line is within a bulk of the thermally tempered substrate. The focused pulsed laser beam is pulsed to form a sequence of pulse bursts comprising one or more sub-pulses. The laser beam focal line produces a damage track within the bulk of the tempered substrate along the laser beam focal line. Relative motion is provided between the focused pulsed laser beam and the tempered substrate such that the pulsed laser beam forms a sequence of damage tracks within the tempered substrate. Individual damage tracks of the sequence of damage tracks are separated by a lateral spacing, and one or more microcracks connect adjacent damage tracks of the sequence of damage tracks.

Abstract: Time-division duplexing (TDD) in distributed communications systems, including distributed antenna systems (DASs) is disclosed. In one embodiment, a control circuit is provided and configured to control the TDD transmit mode of a DAS to control the allocation of time slots for uplink and downlink communications signal distribution in respective uplink path(s) and downlink path(s). The control circuit includes separate power detectors configured to detect either a transmit power level in a downlink path or a receive power level in an uplink path. If the transmit power detected in the downlink path is greater than receive power detected in the uplink path, the control circuit switches the TDD transmit mode to the downlink direction. In this manner, the control circuit does not have to control the TDD transmit mode based solely on detected power in the downlink path, where a directional coupler may leak uplink power in the downlink path.

Abstract: Components, systems, and methods for reducing location-dependent destructive interference in distributed antenna systems operating in multiple-input, multiple-output (MIMO) configuration are disclosed. Interference is defined as issues with received MIMO communications signals that can cause a MIMO algorithm to not be able to solve a channel matrix for MIMO communications signals received by MIMO receivers in client devices. These issues may be caused by lack of separation (i.e., phase, amplitude) in the received MIMO communications signals. Thus, to provide amplitude separation of received MIMO communications signals, multiple MIMO transmitters are each configured to employ multiple transmitter antennas, which are each configured to transmit in different polarization states. In certain embodiments, one of the MIMO communications signals is amplitude adjusted in one of the polarization states to provide amplitude separation between received MIMO communications signals.

Abstract: An optical communication cable subassembly includes a cable core having optical fibers each comprising a core surrounded by a cladding, buffer tubes surrounding subsets of the optical fibers, and a binder film surrounding the buffer tubes. Armor surrounds the cable core, the binder film is bonded to an interior of the armor, and water-absorbing powder particles are provided on an interior surface of the binder film.

Abstract: The present invention relates to a tandem organic light-emitting element, more particularly to a tandem organic light-emitting element which may decrease a driving voltage in a driving region of a charge generation layer by sequentially laminating an electronics layer, which is doped with a metal dopant, and an electronics layer, which is doped with an organic dopant, on one side of the charge generation layer, thereby having increased power efficiency and life span.

Abstract: A composite ceramic composition including a boron carbide phase and a method of forming the same. The composite ceramic composition includes a tungsten boride phase, a transition metal boride phase. The composite ceramic composition may also include a carbon disposed in solid solution with at least the tungsten boride phase and the transition metal boride phase. The transition metal boride phase may include a boride of at least one metal chosen from Cr, Nb, and Zr.

Abstract: A board with preformed seals. In an exemplary embodiment, a sealing material is applied to at least one edge of a board to form a preformed seal on that edge. The board is configured such that when the board is attached to a frame adjacent to a another board, at least a portion of the sealing material applied to the edge of the board seals against at least a portion of an edge another board. In one exemplary embodiment, the boards are configured to seal against edges of substantially identical boards. A plurality of the sheathing boards may be installed on a building frame to form a sheathing system that provides a moisture and/or gas barrier between and interior and exterior of a building.

Abstract: A process for purifying an acryloyloxysilane comprising subjecting a mixture comprising an acryloyloxysilane, a haloorganoalkoxysilane, and an alkane-based non-polar solvent to a temperature and pressure sufficient to vaporize a portion of the non-polar solvent, the haloorganoalkoxysilane, or the non-polar solvent and the haloorganoalkoxysilane from the mixture to produce a purified mixture comprising the acryloyloxysilane. The examples disclose a three-step short-path distillation process, where in the first two passes, the residue-fraction is the one containing the product, whereas in the third path, the distillate is containing the purified product.

Abstract: Microwave drying of ceramic honeycomb logs using a customizable cover that can take the form of a flexible wrap or a rigid cover is disclosed. The cover can be in the form of a wrap disposed directly in contact with the leading edge of the log surface. The cover can also be a rigid cover disposed adjacent but not in contact with the leading edge of the log surface. At least a portion of the trailing edge of the log can remain uncovered either by having windows in the wrap or by the rigid cover only covering the leading edge of the log surface. The customizable cover can be configured to compensate for log shape deformities as well as or in addition to the adverse effect on log shape cause by the drying differential created by passing a log through a microwave drying station leading-edge first.

Abstract: Optical connector assemblies and optical cable assemblies incorporating a supplemental input voltage are disclosed. In one embodiment, an optical connector assembly includes housing and an electrical connector at a face of the housing. The electrical connector includes an input voltage contact for receiving an input voltage. The optical connector assembly further includes voltage converter operable to convert the input voltage to an output voltage at a converter output, a voltage clamping device electrically coupled to the converter output, and a supplemental voltage conductor. The output voltage is greater than the input voltage. The supplemental voltage conductor is electrically coupled to an output of the voltage clamping device and provides a supplemental output voltage at an output of the voltage clamping device. The optical connector assembly further includes an active optical circuit that converts electrical data signals into optical signals.

Abstract: A silicone rubber composition for textile coating is disclosed. The silicone rubber composition comprises: (A) an organopolysiloxane having at least two alkenyl groups in a molecule and having a viscosity at 25° C. of from 100 to 1000000 mPa·s; (B) an organopolysiloxane represented by an average unit formula described herein; (C) a hydrosilylation catalyst; (D) a reinforcing silica fine powder; (E) an organotitanium compound and/or an organozirconium compound; and (F) an alkoxysilane having an epoxy group and/or an alkoxysilane having a methacryl group or an acryl group. The silicone rubber composition generally reduces formation and/or expansion of openings even when a large tension is applied to a textile coated with the silicone rubber composition. A silicone rubber-coated textile and method of formation are also disclosed.

Abstract: Glass and glass ceramic compositions having a combination of lithium silicate and petalite crystalline phases along with methods of making the glass and glass ceramic compositions are described. The compositions are compatible with conventional rolling and float processes, are transparent or translucent, and have high mechanical strength and fracture resistance. Further, the compositions are able to be chemically tempered to even higher strength glass ceramics that are useful as large substrates in multiple applications.