Abstract:
A method for forming ion-exchanged regions in a glass article by contacting an ion source with at least one surface of the glass article, forming a first ion-exchanged region in the glass article by heating a first portion of the glass article with a laser, and forming a second ion-exchanged region in the glass article. Characteristics of the first ion-exchanged region may be different from characteristics of the second ion-exchanged region. A depth of the ion-exchanged region may be greater than 1 μm. A glass article including a first ion-exchanged region, and a second ion-exchanged region having different characteristics from the first ion-exchanged region. The thickness of the glass article is less than or equal to about 0.5 mm.
Abstract:
An optical fiber having a core comprising silica and greater than 1.5 wt % chlorine and less than 0.5 wt % F, said core having a refractive index Δ1MAX, and a inner cladding region having refractive index Δ2MIN surrounding the core, where Δ1MAX>Δ2MIN.
Abstract:
According to one embodiment two-core optical fiber is provided for use in Brillouin distributed fiber sensor applications and systems. The two-core fiber includes a first and second core. Each core is configured to exhibit a Brillouin frequency shift greater than 30 Mhz relative to the other core. Further, each core possesses temperature and strain coefficients that differ from the other core. The cores can be configured to produce Brillouin frequency shift levels of at least 30 Mhz relative to one another. These differences in shift levels may be affected by adjustment of the material compositions, doping concentrations and/or refractive index profiles of each of the cores. These optical fibers may also be used in BOTDR- and BOTDA-based sensor systems and arrangements.
Abstract:
A multicore optical fiber that includes seventeen cores arranged in a hexagonally close-packed configuration, each core having a core center and comprising silica and an up-dopant; and a cladding region surrounding the seventeen cores, the cladding region having a cladding edge, an outer diameter, and a cladding composition comprising silica. The outer diameter of the cladding region is between about 100 microns and 150 microns. Further, the hexagonally close-packed configuration has bi-lateral symmetry to accommodate bi-directional data flow within the fiber.
Abstract:
An optical fiber with large effective area, low bending loss and low attenuation. The optical fiber includes a core, an inner cladding region, and an outer cladding region. The core region includes a spatially uniform updopant to minimize low Rayleigh scattering and a relative refractive index and radius configured to provide large effective area. The inner cladding region features a large trench volume to minimize bending loss. The core may be doped with Cl and the inner cladding region may be doped with F.
Abstract:
A multimode optical transmission system and method that employs a higher-order-mode (HOM)-filter fiber. The system includes a transmitter has a light source that generates modulated light and that has a spatially non-uniform light emission. The system also has an optical receiver with a photodetector that receives and detects the modulated light. A multimode optical fiber link that includes a multimode optical fiber optically connects the light source and the photodetector. At least one HOM-filter fiber is optically connected to the multimode optical fiber. The HOM-filter fiber is configured to gives rise to an optical loss of 1 dB or less while increasing the modal bandwidth of the system by at least 10% as compared to using only the multimode optical fiber.
Abstract:
An optical fiber with large effective area, low bending loss and low attenuation. The optical fiber includes a core, an inner cladding region, and an outer cladding region. The core region includes a spatially uniform updopant to minimize low Rayleigh scattering and a relative refractive index and radius configured to provide large effective area. The inner cladding region features a large trench volume to minimize bending loss. The core may be doped with Cl and the inner cladding region may be doped with F.
Abstract:
A multimode coupling fiber for optical data links features low coupling loss to silicon photonics lasers, VCSELs, single mode transmission fibers, multimode transmission fibers, and high speed receivers. The coupling fiber includes a core, an optional inner cladding region, a depressed index cladding region, and an outer cladding region. The relative refractive index profile of the coupling fiber includes a core region with a profile and a depressed index cladding region that facilitates low bending loss and high bandwidth. The mode field diameter of the coupling fiber is well-matched to standard single mode transmission fibers and the etendue of the coupling fiber is high enough to couple efficiently to multimode transmission fibers.
Abstract:
One embodiment of the disclosure relates to a system comprising: (i) at least light source transmitting at a bit rate of 10 Gb/s or higher at one or more wavelengths between 840 and 860 nm; (ii) at least one few moded optical fiber optically coupled to said light source, said fiber comprises a graded index a graded index glass core having a diameter D1, such that 12.5 microns≦D1
Abstract:
A method for manufacturing an optical waveguide interconnect may comprise providing a substrate, irradiating portions of the substrate's interior volume by directing a processing laser beam into the substrate surface, thus defining one or more surfaces that function as optic components, forming an embedded waveguide in the interior volume by directing the processing laser beam into the substrate surface, and etching away the weakened portions of the substrate's interior volume overlying the defined surfaces using an etchant. The optic components and the waveguide may be aligned to be in optical communication with each other such that an input beam of light may strike the defined surface of a first optic component, traverse the waveguide, and strike the defined surface of a second optic component.