Abstract: Disclosed is an optical interconnection device that includes an alignment ferrule assembly formed from an alignment substrate and optical fibers. The optical interconnection device also has an alignment assembly formed by a planar support member with guide features. A receiving region resides between the guide features in which the alignment substrate is secured. An evanescent optical coupler can be formed using the optical interconnection device as a first device and another optical interconnection device as a second device. The second device is constituted by a planar lightwave circuit that operably supports waveguides and an adapter. The adapter of the second device is configured to engage the alignment assembly of the first device to place the optical fibers and the optical waveguides of the respective devices in evanescent optical communication.

Abstract: Drop cable assemblies that can be routed from an outdoor terminal directly to an indoor wall outlet without disruption, and adhered to the interior of a dwelling after removal of the drop cable jacket and utilization of a pre-applied adhesive layer are described. Additionally, telecommunications systems utilizing such assemblies, methods of routing such assemblies and methods of making such assemblies are described.

Abstract: An assembly for fixing an optical element in a manner that decouples the optical element from mechanical stresses and thermal strains while providing freedom to facilitate alignment of the optical element, and while also eliminating polymers that can cause contamination problems including a mount configured for attachment to an optical system; a plurality of flexible members each having a first end affixed to or integrally extending from the mount, and a free end defining a bearing surface for supporting an optical element; and a polymer free bonding agent forming a hydroxide-catalyzed bond joining a surface of the optical member to the bearing surface. The optical element may be aligned with the flexible members without resting on the flexible members.

Abstract: A hyperspectral imaging system and method are described herein for providing a hyperspectral image of an area of a remote object. In one embodiment, the hyperspectral imaging system includes an optic, a stack of waveguide plates, a spectral filter array, a detector array, and a controller.

Abstract: A splice enclosure for providing a space for receipt of a plurality of spliced optical fibers of a plurality of cables may include a cabinet including a rear wall, a first side wall coupled to the rear wall, and a second side wall coupled to the rear wall. The cabinet may also include a lower wall coupled to the first side wall, the second side wall, and/or the rear wall. The splice enclosure may further include a splice tray assembly, which may include a splice tray housing pivotally coupled to the cabinet, and a plurality of splice trays pivotally coupled to the splice tray housing and configured to provide a space for receipt of a plurality of spliced optical fibers of a plurality of cables. The splice tray housing may be pivotally coupled to the cabinet, such that the splice tray housing pivots.

Abstract: A method of applying a coating liquid to an optical fiber is described. An optical fiber is drawn through a guide die into a pressurized coating chamber and through the pressurized coating chamber to a sizing die. The pressurized coating chamber contains a coating liquid. The method includes directing coating liquid in a direction transverse to the processing pathway of the optical fiber in the pressurized coating chamber. The transverse flow of coating liquid counteracts detrimental effects associated with gyres that form in the pressurized coating chamber during the draw process. Benefits of the transverse flow include removal of bubbles, reduction in the temperature of the gyre, improved wetting, homogenization of the properties of the coating liquid in the pressurized coating chamber, and stabilization of the meniscus.

Abstract: Described herein are glass forming apparatuses with cooled muffle assemblies and methods for using the same to form glass ribbons. According to one embodiment, a muffle assembly for a fusion forming apparatus may include a muffle frame comprising a back wall, a front wall opposite the back wall, and a pair of sidewalls joining the front wall to the back wall in a closed-loop. At least one first cooling tube may extend through the back wall and the front wall across the closed-loop. At least one second cooling tube may extend through the back wall and the front wall across the closed loop such that the at least one second cooling tube is spaced apart from and parallel with the at least one first cooling tube.

Abstract: An improved process for preheating and doping a preform having a consolidated glass core and a silica soot cladding surrounding core involves waveguiding millimeter wavelength electromagnetic radiation into the preform to cause heating of the preform within the interior via absorption of the electromagnetic radiation by silica in the preform while the preform is exposed to a gas phase dopant.

Abstract: A dual cure (condensation and free radical reaction) adhesive composition is useful for electronics applications.

Abstract: A method of forming an optical fiber preform includes the steps: igniting a burner having a fume tube assembly to produce a first spray size of silicon dioxide particles; depositing the silicon dioxide particles on a core cane to produce a soot blank; and adjusting an effective diameter of an aperture of the fume tube assembly to produce a second spray size of the silicon dioxide particles. The second spray size is larger than the first spray size.

Abstract: An optical fiber coating apparatus that provides increased gyre stability and reduced gyre strength, thereby providing a more reliable coating application process during fiber drawing includes a cone-only coating die having a conical entrance portion with a tapered wall angled at a half angle ?, wherein 2°???25°, and a cone height L1 less than 2.2 mm, and a cylindrical portion having an inner diameter of d2, wherein 0.1 mm?d2?0.5 mm and a cylindrical height of L2, wherein 0.05 mm?L2?1.

Abstract: Bromine doping of silica glass is demonstrated. Bromine doping can be achieved with SiBr4 as a precursor. Bromine doping can occur during heating, consolidation or sintering of a porous silica glass body. Doping concentrations of bromine increase with increasing pressure of the doping precursor and can be modeled with a power law equation in which doping concentration is proportional to the square root of the pressure of the doping precursor. Bromine is an updopant in silica and the relative refractive index of silica increases approximately linearly with doping concentration. Bromine can be used as a dopant for optical fibers and can be incorporated in the core and/or cladding regions. Core doping concentrations of bromine are sufficient to permit use of undoped silica as an inner cladding material in fibers having a trench in the refractive index profile. Co-doping of silica glass with bromine and chlorine is also demonstrated.

Abstract: Digital predistortion (DPD) timing alignment in a remote unit(s) for a wireless communications system (WCS) is disclosed. In examples discussed herein, a remote unit includes a power amplifier (PA) configured to amplify a radio frequency (RF) signal before transmission. The RF signal may include an unwanted distortion term and a DPD circuit is provided in the remote unit to create an artificial distortion term to help cancel out the unwanted distortion term. The remote unit includes a DPD front-end circuit configured to generate a digital training signal corresponding to a predefined waveform pattern. The DPD circuit can be configured to perform a DPD timing alignment based on the predefined waveform pattern to determine a timing offset that is need to create the artificial distortion term. As such, it may be possible to effectively cancel the unwanted distortion term in the RF signal to improve efficiency and linearity of the PA.

Abstract: A machine for distributing blowing insulation material from a package of compressed loosefill insulation material is provided. The machine includes a chute having an inlet end and outlet end. The inlet end is configured to receive the package of compressed loosefill insulation material. The chute further has a removable hose hub extending within the interior of the chute. The removable hose hub is configured for wrapping with a distribution hose. A lower unit is configured to receive the compressed loosefill insulation material exiting the outlet end of the chute. The lower unit includes a plurality of shredders and a discharge mechanism. The discharge mechanism is configured to discharge conditioned loosefill insulation material into an airstream.

Abstract: Multiple application devices (such as multiple application modules (MAMs) and multiple application units (MAUs) for receiving of signals in wireless distribution systems (WDSs), including but not limited to distributed antenna systems (DASs), and providing a variety of network services are disclosed. The multiple application devices are wireless telecommunication circuitry associated with wireless distribution components in a WDS. By associating multiple application devices into components of a WDS, network services and applications within the WDS can be provided.

Abstract: Disclosed is a microcracked ceramic body, comprising a predominant phase (greater than 50 wt %) of zirconium tin titanate and a dilatometric coefficient of thermal expansion (CTE) from 25 to 1000 C of not more than 40×10?7° C.?1 as measured by dilatometry and methods for the manufacture of the same.

Abstract: A cell culture article comprises virgin polystyrene disposed over at least a portion of a surface of an article main body. The article main body may be formed from polyethylene terephthalate (PET) such as reground or recycled polyethylene terephthalate. Methods of making such a cell culture article include applying a composition to a surface of an article main body, where the composition comprises virgin polystyrene having a thickness of 1 to 500 microns and the article main body is formed from glass, ceramic, metal or polymer.

Abstract: An article includes a wafer having a body which defines a first surface and a second surface. The wafer defines a via having a via surface extending between the first and second surfaces through the body. An adhesion layer is positioned on the via surface. At least a portion of the via surface is free of the adhesion layer. A metallic component is positioned within the via and extends from the first surface to the second surface.

Abstract: Multiple application devices (such as multiple application modules (MAMs) and multiple application units (MAUs)) for providing services in wireless distribution systems (WDSs) are disclosed. The multiple application devices are wireless telecommunication circuitry associated with wireless distribution components in a WDS. By associating multiple application devices into components of a WDS, network services, and applications within the WDS can be provided. The WDS may comprise a central unit, a plurality of remote units, and a plurality of multiple application devices associated with at least one of the central unit and at least one of the remote units. Each of the plurality of multiple application devices comprises at least one multiple applications processor, is connected to at least one other of the plurality of multiple application devices, and is configured to coordinate with one other multiple application device of the plurality of multiple application devices to provide a user requested service.

Abstract: A manufacturing line includes a tape of green material that is directed through a furnace so that the furnace burns off organic binder material and then partially sinters the tape without the use of a setter board. Sintered articles resulting from the manufacturing line may be thin with relatively large surface areas; and, while substantially unpolished, have few sintering-induced surface defects. Tension may be applied to the partially sintered tape as it passes through a second furnace on the manufacturing line to shape resulting sintered articles.