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Ofs Fitel Llc patents (2018 archive)


Recent patent applications related to Ofs Fitel Llc. Ofs Fitel Llc is listed as an Agent/Assignee. Note: Ofs Fitel Llc may have other listings under different names/spellings. We're not affiliated with Ofs Fitel Llc, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "O" | Ofs Fitel Llc-related inventors


Flat profile optical fiber cable for distributed sensing applications

A distributed sensing optical fiber cable is proposed. An optical fiber is positioned at the center of the cable and includes a core region, at least one cladding layer surrounding the core region, a protective coating covering the at least one cladding layer, and a tight buffer of elastomeric thermoplastic material disposed to surround the protective coating. ... Ofs Fitel Llc

Installation of optical fiber distribution cables in a multi-dwelling unit building

An optical fiber distribution cable for servicing living units inside a mdu building, is formed by surrounding differently colored optical fibers with a jacket having a diameter of not more than about 3.5 mm. The jacket is opaque for hiding the colored fibers at least partially from view, thus reducing or eliminating any negative visual impact of the cable when installed. ... Ofs Fitel Llc

Cladding mode stripper for use with optical systems and methods of forming the same

An all-glass cladding mode stripper comprises a plurality of high refractive index, small diameter glass beads disposed along an exposed portion of the inner cladding region of an optical fiber. The unwanted low na signal light (as well as any other type of stray light) propagating within the cladding layer is removed by refracting into the adjacent beads, where this captured light then scatters away from the optical fiber.. ... Ofs Fitel Llc

Broad bandwidth graded index multimode optical fiber for distributed temperature sensing in the 550nm region

. . Disclosed herein is a method for measuring temperature via distributed temperature sensing comprising transmitting light through a fiber optic cable; detecting backscattered light in the fiber optic cable, wherein the backscattered light comprises an anti-stokes band and a stokes band; calculating a ratio between an intensity of the anti-stokes band and an intensity of the stokes band; and using the calculated ratio to determine a temperature being sensed in the fiber optic cable; wherein the fiber optic cable comprises, from the center to the periphery; a central core having a refractive index that decreases progressively from a center of the central core to an edge of the core, wherein the refractive index follows an alpha profile; wherein a bandwidth-length product of the multimode optical fiber has a value greater than 2000 mhz-km at 1550 nm.. . ... Ofs Fitel Llc

Fiber optic storage module installation at user premises

An optical fiber storage module has a base, and a wall having an opening for paying out an optical fiber from inside the module. Spool retention fingers extend from the base. ... Ofs Fitel Llc

High count optical fiber cable configuration

A high count optical fiber cable is formed of a number of sub-unit components stranded around a central tension member. Each sub-unit component is formed to include the total number of individual fibers required to populate a given equipment rack (e.g., 288 fibers, for example). ... Ofs Fitel Llc

Parallel slit torch for making optical fiber preform

A torch for fabricating optical fiber preforms may include a body having a surface and two or more slit-shaped orifices oriented parallel or substantially parallel to each other along the surface. The torch body may further include two or more conduits connected to corresponding orifices. ... Ofs Fitel Llc

Gain fiber for high power lasers and amplifiers

An optical gain fiber for use in high power (e.g., greater than 500 w pump power) is proposed that is configured to exhibit a minimum bend radius such that the bend loss for the propagating lp01 mode is greater than about 0.03 db/m. It has been discovered that this bend radius criteria, which is less stringent, than that typically suggested in the art (e.g., bend loss less than about 0.03 db/m), meets the modal stability requirements at high power operation, since the increase in operating temperature of the fiber laser or amplifier has been found to somewhat relax the bend radius requirement (which was heretofore only measured at “room temperature”, not “operating temperature”). ... Ofs Fitel Llc

Wireless network cable assembly

An optical fiber-based cable is formed to include pre-manufactured wireless access nodes included at spaced-apart locations along a length of the optical fiber cable. Each wireless access node is formed to include an antenna, a wireless radio transceiver, and an optical transceiver. ... Ofs Fitel Llc

Polarization-maintaining fiber device supporting propagation in large mode field diameters

A higher-order mode (hom) fiber is configured as a polarization-maintaining fiber by including a pair of stress rods at a location within the cladding layer that provides for a sufficient degree of birefringence without unduly comprising the spatial mode profile of the propagating higher-order modes. Long-period gratings are used as mode couplers at the input and output of the pm-hom fiber, where the gratings are formed by exposing areas of the core region orthogonal to the position of the stress rods. ... Ofs Fitel Llc

Polarization maintaining optical fiber with non-symmetric stress applying parts

Embodiments are directed to an optical fiber cable assembly. The optical fiber cable assembly is a polarization maintaining optical fiber assembly. ... Ofs Fitel Llc

Extending a range of an optical fiber distributed sensing system

Embodiments are directed to a distributed temperature sensing system. The system includes a first fiber optic cable and a second fiber optic cable. ... Ofs Fitel Llc

Splicing optical fiber cable using a mass fusion splicer having a pitch different from cable pitch

A method for splicing a first optical fiber ribbon cable to a second optical fiber ribbon cable includes separating an end of the first optical fiber ribbon cable into loose optical fibers, and re-ribbonizing the loose optical fibers into a ribbonized end having a second pitch different from the first pitch of the original first optical fiber ribbon cable. The method further includes inserting the ribbonized end into a mass fusion splicer having the second pitch, and splicing the ribbonized end to the end of the second optical fiber ribbon cable using the mass fusion splicer.. ... Ofs Fitel Llc

Fiber bragg gratings in carbon-coated optical fibers and techniques for making same

A technique is described for fabricating one or more optical devices in a carbon-coated optical fiber. A photosensitive optical fiber is provided having a hermetic carbon coating. ... Ofs Fitel Llc

01/11/18 / #20180011236

Optical fiber assembly, methods of manufacture thereof and articles comprising the same

Disclosed herein is an optical fiber assembly comprising a launching fiber having a receiving end and a transmitting end; an illuminating fiber having a receiving end and a transmitting end; where the receiving end of the launching fiber is operative to receive light from a light source and the transmitting end of the launching fiber is operative to transmit light to the receiving end of the illuminating fiber; where the launching fiber contacts the illuminating fiber in a manner so as to be offset from a center of a cross-sectional area of the illuminating fiber; and where the launching fiber has a diameter that is ⅛ to ½ of a diameter of the illuminating fiber; and a lens that is operative to contact the transmitting end of the illuminating fiber.. . ... Ofs Fitel Llc








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