Abstract: Fiber optic connectors and connectorized fiber optic cables include connector housings having locking portions defined on the connector housing that allow the connector housing to be selectively coupled to a corresponding push-button securing member of a multiport assembly. Methods for selectively connecting a fiber optic connector to, and disconnecting the fiber optic connector from the multiport assemblies allow for connector housings to be forcibly and nondestructively removed from the multiport assembly.

Abstract: A method of measuring geometric parameters of through holes in a thin substrate includes acquiring images of select sub-volumes of the substrate using an optical system having a field of depth greater than a thickness of the substrate. The acquired images are processed to determine the desired geometric parameters.

Abstract: A method of strengthening a silica soot compact is provided. The method includes forming a mixture of silica soot particles and nanoparticles, and forming a silica soot compact from the mixture.

Abstract: A photonic adaptor has a first face side to couple the photonic adaptor to an optical connector and a second face side to couple the photonic adaptor to an optoelectronic substrate. The photonic adaptor comprises a plurality of optical fibers being arranged between the first face side and the second face side of the photonic adaptor. The photonic adaptor comprises at least one alignment pin projecting out of at least the first face side of the photonic adaptor. The at least one alignment pin is configured to be inserted in the optical connector to align optical fibers of an optical cable to the optical fibers of the photonic adaptor.

Abstract: Apparatuses and methods for heating moving continuous glass ribbons at desired lines of separation and/or for separating glass sheets from continuous glass ribbons are disclosed. An apparatus includes a translatable support portion and a heating apparatus coupled to the support portion. The heating apparatus is configured to contact the continuous glass ribbon across at least a portion of a width of the continuous glass ribbon at the desired line of separation as the support portion moves in a draw direction, thereby preferentially applying heat to a first side of the continuous glass ribbon at the desired line of separation as the continuous glass ribbon moves in the draw direction.

Abstract: Techniques for screening homopolymers, copolymers or blends for fabrication are disclosed. A data repository stores data points. Each data point comprises a structural repeating unit (SRU) and at least one material property value for the SRU. Each SRU is a homopolymer SRU, a copolymer component SRU or a blend component SRU. A machine determines a fingerprint for at least a subset of the SRUs in the data repository. The machine stores, in the data repository, each determined fingerprint in conjunction with a corresponding SRU. The machine generates a quantitative modeling engine to predict material property values, based on SRUs, for homopolymers, copolymers or blends. The quantitative modeling engine is based, at least in part, on the fingerprints. The machine identifies, using the quantitative modeling engine, at least one homopolymer SRU, copolymer SRU set or blend SRU set that has a material property value within a given range.

Abstract: A fiber bulge (“bulge”) formed in an end of an optical fiber for positioning the optical fiber in a ferrule bore is disclosed. An energy source is controlled to direct focused energy to the end of the optical fiber extended from the front end face of the ferrule to expose and melt the end of the optical fiber into a bulge of desired geometry and size. The bulge comprises a cross-sectional region having an outer surface having a minimum outer diameter larger than the inner diameter of the ferrule bore. Thus, the optical fiber may be pulled back in the ferrule bore such that at least a portion of the outer surface of the interface region of the bulge interferes with and engages the front opening of the ferrule bore to position the fiber core within the ferrule bore.

Abstract: 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 about 0.7·t to t, comprise a tangent with a slope having an absolute value greater than about 0.1 MPa/micrometer. 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) and a maximum central tension of less than about 71.5/?(t) (MPa). 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.

Abstract: Systems and methods for performance evaluations in distributed antenna systems (DAS) allow certain ones of remote radio units (RRUs) (note that the RRUs may also be referred to as a remote antenna unit (RAU)) within a DAS to emulate user equipment and send test signals to other RRUs. The other RRUs may report these signals to a management device for analysis and determination as to whether service of a desired level is provided. Further, the emulator RRU may also receive test signals from the other RRUs and report such signals to the management device for evaluation. Based on these evaluations, the adequacy of the placement of the RRUs relative to a desired standard may be determined and adjustments recommended.

Abstract: A distributed radio access network (RAN) is provided. A selected wireless transceiver node(s) in a selected coverage cell receives a radio frequency (RF) test signal(s). The selected wireless transceiver node(s) determines an effective gain value based on a predefined characteristic of the RF test signal(s). The selected wireless transceiver node(s) communicates the effective gain value and other related parameters to a server apparatus in the distributed RAN. The server apparatus determines a common gain value for the selected wireless transceiver node(s) in the selected coverage cell based on the parameters. Accordingly, the selected wireless transceiver node(s) operates based on the common gain value.

Abstract: Detachable optical connectors including a connector support for optical chips and methods of their fabrication are disclosed. In one embodiment, an optical assembly includes an optical chip including a surface, an edge extending from the surface, and at least one chip waveguide proximate the surface and terminating at the edge. The optical assembly further includes a waveguide support having a chip coupling surface, and at least one waveguide disposed within the waveguide support and terminating at the chip coupling surface, wherein the chip coupling surface is coupled to the edge of the optical chip such that the at least one waveguide within the waveguide support is optically coupled to the at least one chip waveguide of the optical chip. The optical assembly further includes a connector support having a first portion coupled to the optical chip, and a second portion coupled to the waveguide support.

Abstract: Systems and methods for dynamically selecting energy detection thresholds (EDTs) in radio nodes deploying listen before talk within a coordinated network to improve throughput on shared spectrum are disclosed. The radio nodes are configured to coordinate to deploy mechanisms to avoid or reduce interference issues, including collisions, with use of shared spectrum (e.g., unlicensed spectrum). One such mechanism is Listen Before Talk (LBT), and a radio node deploying LBT sets an EDT at which the radio node hears traffic from neighboring radio nodes on the shared spectrum. In an exemplary aspect, the EDT of radio nodes in the coordinated network of radio nodes can be dynamically selected and/or adjusted to improve throughput of the individual radio nodes and/or of the network of radio nodes as a whole.

Abstract: Hardened fiber optic connectors having a mechanical splice assembly are disclosed. The mechanical splice assembly is attached to a first end of an optical waveguide such as an optical fiber of a fiber optic cable by way of a stub optical fiber, thereby connectorizing the hardened connector. In one embodiment, the hardened connector includes an inner housing having two shells for securing a tensile element of the cable and securing the mechanical splice assembly so that a ferrule assembly may translate. Further assembly of the hardened connector has the inner housing fitting into a shroud of the hardened connector. The shroud aides in mating the hardened connector with a complimentary device and the shroud may have any suitable configuration. The hardened connector may also include features for fiber buckling, sealing, cable strain relief or a pre-assembly for ease of installation.

Abstract: A method of forming a glass article is provided. The method includes the steps of positioning a first interface surface of a first glass block proximate a second interface surface of a second glass block to define an interface seam, welding the first and second glass blocks together around a majority of the interface seam to define an internal cavity, coupling a vacuum fitting to at least one of the first and second glass blocks, drawing a vacuum in the cavity between the first and second glass blocks, and heating the first and second glass blocks to fuse the first and second glass blocks together.

Abstract: Cell culture devices are described herein that have notched lids, notched lids with corresponding gripping pads included on their bases, or gripping tabs included on their bases to minimize or eliminate the need for a user to contact a lid when attempting to lift or move a lidded cell culture device. In addition, methods for using the cell culture devices are also described herein.

Abstract: A single mode optical fiber includes: (i) a silica based core having a refractive index profile with an alpha (?) between 1.8 and 200, a relative refractive index ?1max %, and an outer radius r1, wherein 7 microns>r1?4.5 microns, the core further comprising silica doped with chlorine, wherein the maximum chlorine concentration in the core is greater than 0.5 wt %; and wherein 1.40<X<1.7 where X=[(2?n1(2?1max % r12)1/2/Vc)+(0.0028*Vm)], n1 is maximum refractive index of the core, Vm is moat volume, and Vc is a function of core alpha (?) and (ii) an outer cladding region surrounding the first cladding region, the outer cladding region having a relative refractive index ?4% such that ?1max>?4%.

Abstract: An optical fiber includes an outer diameter less than 220 ?m, a glass fiber that includes a glass core and a glass cladding, a primary coating, and a secondary coating. The glass cladding surrounds and is in direct contact with the glass core. The primary coating surrounds and is in direct contact with the glass fiber. The primary coating can have a Young's modulus less than 0.5 MPa and a thickness less than 30.0 ?m. The secondary coating surrounds and is in direct contact with the primary coating. The secondary coating can have a thickness less than 27.5 m. A pullout force of the optical fiber can be less than a predetermined threshold when in an as-drawn state. The pullout force may increase by less than a factor of 2.0 upon aging the primary and secondary coatings on the glass fiber for at least 60 days.

Abstract: An optical fiber production system is provided which includes a slow-cooling device and a purge device positioned above the slow-cooling device. The purge device includes a tube defining an inlet. An optical fiber extends through the slow-cooling device and the purge device. The purge device is configured to inject a purge gas through the inlet and against the optical fiber.

Abstract: A new and distinct Vriesea plant named ‘BRIGHT DAY’ characterized as a funnel form rosette plant, measuring about 38 cm in height (when flowering) and 45 cm in diameter, producing compound, red in color (RHS 45B), bipinnate spike inflorescence, measuring about 20 cm in height and about 18 cm in diameter, about 7 branches, and yellow-green foliage, measuring about 25-30 cm in length and about 3.5 cm to 4.5 cm in width.

Abstract: A new and distinct Vriesea cultivar named ‘SHADE’ is disclosed, characterized by a compound, orange-red bipinnate spike inflorescence and light green foliage. The new variety is a Vriesea, typically produced as an indoor ornamental plant.