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Draka Comteq B v patents


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

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "D" | Draka Comteq B v-related inventors


Method and an performing a plasma chemical vapour deposition process and a method

A method and apparatus for performing a plasma chemical vapour deposition process including a mainly cylindrical resonator having an outer cylindrical wall and an inner coaxial cylindrical wall defining therebetween a resonant cavity operable at an operating frequency. The resonant cavity extends in a circumferential direction around a cylindrical axis... Draka Comteq B v

Method for characterizing performance of a multimode fiber optical link and corresponding methods for fabricating a multimode optical fiber link showing improved performance and for improving performance of a multimode optical fiber link

Disclosed is a method of characterizing a multimode optical fiber link including a light source and two or more multimode fibers. The method includes a step of characterizing each of said multimode fibers using a measurement of the Dispersion Modal Delay (DMD) for each of said multimode fibers, and delivering,... Draka Comteq B v

Multimode optical fiber with high bandwidth, and corresponding multimode optical system

The invention concerns a multimode optical fiber, with an ct-profile graded-index core with an a-value between 1.96 and 2.05 and a N value defined as N=(R1/λ)2(n12−n02) between 7 and 52, where R1 is the multimode core radius, n1 is the maximum index of the multimode core and n0 is the... Draka Comteq B v

An optical cable with retractable modules and a producing said modules

An optical cable (1) comprises a sheath (2) surrounding a cavity (3) and a plurality of substantially parallel modules (4) arranged into said cavity (3) with a filling ratio between 20 and 50%; each of said modules (4) comprises:•four to twelve fibers (9),•A tube (5) surrounding the fibers (9) that... Draka Comteq B v

Multimode optical fiber with high bandwidth over an extended wavelength range, and corresponding multimode optical system

The invention concerns a multimode optical fiber, with a graded-index core co-doped with at least fluorine F and germanium GeO2 and a refractive index profile with at least two α-values. According to the invention, the concentration of fluorine F at the core center ([F]r=0) is between 0 and 3 wt... Draka Comteq B v

Method of measuring time delays with respect to differential mode delay (dmd) of a multi-mode fiber (mmf) or a few-mode fiber (fmf)

The invention relates to a method of measuring time delays with respect to differential mode delay of a multi-mode fiber or a few-mode fiber for at least two different wavelengths. The time delays for each wavelength are measured before the single mode fiber is translated to a next radial offset.... Draka Comteq B v

Method for qualifying the effective modal bandwidth of a multimode fiber over a wide wavelength range from a single wavelength dmd measurement and selecting a high effective modal bandwidth multimode fiber from a batch of multimode fibers

The invention relates to a method for qualifying the actual effective modal bandwidth of a multimode optical fiber over a predetermined wavelength range, comprising the steps of: carrying out (30) a Dispersion Modal Delay (DMD) measurement of the multimode optical fiber at a single wavelength to obtain an actual DMD... Draka Comteq B v

Hybrid single-mode and multimode optical fiber

A hybrid optical fiber integrates features of multimode optical fibers and single-mode optical fibers. The hybrid optical fiber possesses an optical core having a first core region and a second core region to provide improved optical mode coupling ratio for single-mode transmission while maintaining a broad bandwidth for multimode transmission.... Draka Comteq B v

Method for etching a primary preform

The present invention relates in a first aspect to a method for etching a primary preform or core rod. The present invention moreover relates in a second aspect to the etched primary preform thus obtained and moreover to a final preform and optical fibers obtained therefrom and to a method... Draka Comteq B v

Method for characterizing mode group properties of multimodal light traveling through optical components

ΔTREF is a Full Width at Quarter Maximum of said reference pulses.... Draka Comteq B v

Method and apparatus providing increased uvled intensity and uniform curing of optical-fiber coatings

A UVLED apparatus and a related method provide increased UVLED intensity to promote efficient curing of a coated glass fiber. The apparatus employs a plurality of UVLED sources, each UVLED source emitting an oscillating output of ultraviolet radiation. Typically, at least two of the UVLED sources have oscillating outputs of... Draka Comteq B v

Single mode fibre with a trapezoid core, showing reduced losses

The invention concerns a single mode optical fibre having a core and a cladding, the core refractive index profile having a trapezoid-like shape. According to an aspect of the invention, the transition part of the trapezoid-like core refractive index profile is obtained by gradually changing a concentration of at least... Draka Comteq B v

Method for preparing a primary preform by etching and collapsing a deposited tube

An exemplary method for preparing a primary preform by etching and collapsing a deposited tube includes mounting a deposited tube on a lathe and introducing the deposited tube into a central aperture of a furnace mounted on the lathe, wherein the furnace and the deposited tube are movable in axial... Draka Comteq B v

Method for activating an inner surface of a substrate tube for the manufacturing of an optical-fiber preform

A method activates the inner surface of a substrate tube via plasma etching with a fluorine-containing etching gas. An exemplary method includes the steps of (i) supplying a supply flow of gas to the interior of a substrate tube, wherein the supply flow includes a main gas flow and a... Draka Comteq B v








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