Sterlite Technologies Limited

Atul Kumar Mishra

Kishore Chandra Sahoo

Sravan Kumar

Venkatesh Murthy

Kavya Chintada

Pavan Kumar Moturu

Vikash Shukla

Sravan Kumar Peraka

Sourabh Singh Panwar

Kangabam Tenzing

Vikas Shukla

Hemanth Kondapalli

Dnyaneshwar Wagh

Mahesh Deshpande

Gahininath Shinde

The present disclosure provides an optical fibre ribbon () with intermittent bonding. The optical fibre ribbon () includes a plurality of optical fibres (). The plurality of optical fibres () are placed parallel to each other. The plurality of optical fibres () adjacent to each other are bonded intermittently along a length. The optical fibre ribbon () has a bond ratio of about 15 to 22. The bond ratio is a ratio of a number of a plurality of bonds () per unit length of the optical fibre ribbon () to a number of optical fibres in the optical fibre ribbon ().

Optical fibre ribbon with optimized number of bonds

The present disclosure provides a rollable optical fibre ribbon () with intermittent bonding. The rollable optical fibre ribbon () includes a plurality of optical fibres. The plurality of optical fibres () are placed parallel to each other, wherein the plurality of optical fibres () adjacent to each other are bonded intermittently along a length by a plurality of bonded portions (). The plurality of bonded portions () occupies 3 to 20% of an area of the rollable optical fibre ribbon of length 1 meter. An area of the plurality of bonded portions () is defined as an area projected by the plurality of bonded () portions on a plane passing through centres of the plurality of optical fibres () of the rollable optical fibre ribbon () and extending longitudinally.

Rollable optical fibre ribbon with intermittent bonding

The present disclosure provides a matrix material for a rollable optical fibre ribbon. The rollable optical fibre ribbon includes a plurality of optical fibres and the matrix material. In addition, each of the plurality of optical fibres is placed parallel to other optical fibres of the plurality of optical fibres. Further, the matrix material joins the plurality of optical fibres. Furthermore, the matrix material has different glass transition temperature at different pressures.

Matrix material for rollable optical fiber ribbons

The present disclosure provides an optical fibre ribbon. The optical fibre ribbon includes a plurality of optical fibres bonded with a matrix material. The matrix material is applied along a longitudinal length of the plurality of optical fibres. Further, the plurality of optical fibres is defined by a geometrical centre and diameter. Further, the plurality of optical fibres has a predefined distance between geometrical centres of any two adjacent optical fibres of the plurality of optical fibres. Moreover, the predefined distance between geometrical centres of any two adjacent optical fibres of the plurality of optical fibres is less than 200 microns. Further, the optical fibre ribbon provides the optical fibre ribbon cable that is flexible and easy to install in space constraint regions and allows ribbons to bend easily at non-preferential axis. Furthermore, the optical fibre ribbon with reduced weight and with high mass fusion splicing capability.

Optical fiber ribbon cable

The present disclosure provides an optical fiber cable (). The optical fiber cable () includes a first layer () and a second layer (). The second layer () surrounds the first layer (). The first layer () includes a first plurality of buffer tubes (). The second layer () comprises a second plurality of buffer tubes (). Each buffer tube of the first plurality of buffer tubes () and the second plurality of buffer tubes () has a thickness of at most 0.15 millimeter. Each buffer tube of the first plurality of buffer tubes () and the second plurality of buffer tubes () includes a first material layer () and a second material layer (). The second material layer () surrounds the first material layer (). The first material layer () is made of polybutylene terephthalate. The second material layer () is made of polycarbonate.

Dual layer micro optical fiber cable

The present disclosure provides an optical fiber cable. The optical fiber cable includes at least one optical fiber ribbon stack. In addition, the at least one optical fiber ribbon stack includes a plurality of stacked ribbons. Further, each ribbon of the plurality of stacked ribbons includes a plurality of optical fibers. The plurality of optical fibers includes edge fibers. The edge fibers are defined as the at least one optical fiber having a mach number of at most 7.2 disposed at a first end and a second end of a first ribbon and a last ribbon of the plurality of stacked ribbons.

Multi loose tube ribbon cable

The present disclosure provides an optical fiber cable. The optical fiber cable includes a central strength member. The central strength member lies substantially along a longitudinal axis of the optical fiber cable. The optical fiber cable includes at least one buffer tube. The at least one buffer tube is stranded helically around the central strength member. Each of the at least one buffer tube encapsulates at least one optical fiber. The optical fiber cable includes a first layer. The first layer circumferentially surrounds a core of the optical fiber cable. The optical fiber cable includes a second layer. The second layer is formed of high density polyethylene. The optical fiber cable includes at least one set of water swellable yarn and a plurality of ripcords.

Fiber multitube optical fiber cable

The present disclosure provides an optical waveguide cable. The optical waveguide cable includes one or more optical waveguide bands positioned substantially along a longitudinal axis of the optical waveguide cable. Further, the optical waveguide cable includes a plurality of cylindrical enclosure substantially concentric to the longitudinal axis of the optical waveguide cable. The plurality of cylindrical enclosure includes a predefined cylindrical enclosure. Furthermore, the one or more optical waveguide bands include a plurality of light transmission elements. Moreover, the density of the predefined cylindrical enclosure is at most 0.935 gram per cubic centimeter. Also, the optical waveguide cable has a waveguide area factor about 44%. The one or more optical waveguide bands are coupled longitudinally with the predefined cylindrical enclosure. The predefined cylindrical enclosure is at a predefined diagonal distance of about 0.9 millimeter from the one or more optical waveguide bands.

Predefined cylindrical enclosure for optical waveguide cable

The present disclosure provides an optical fiber cable (). The optical fiber cable () includes a plurality of optical fibers ribbons () lying substantially along a longitudinal axis () of the optical fiber cable (). Further, the optical fiber cable () includes a first layer () surrounding the plurality of optical fibers ribbons (). Furthermore, the optical fiber cable () includes a second layer () surrounding the first layer (). Furthermore, the optical fiber cable () includes a third layer () surrounding the second layer (). Moreover, the optical fiber cable () includes a fourth layer () surrounding the third layer (). The first layer () is a water blocking tape. The third layer () is sandwich of water blocking material and ECCS steel tape. Moreover, the optical fiber cable () includes two pairs of strength members (--) embedded inside the second layer ().

Loose tube cable with embedded strength member

The present disclosure provides an optical fiber cable. The optical fiber cable includes a plurality of optical fibers lying substantially along a longitudinal axis of the optical fiber cable. Further, the optical fiber cable includes a first layer surrounding the plurality of optical fibers. Furthermore, the optical fiber cable includes a second layer surrounding the first layer. Furthermore, the optical fiber cable includes a third layer surrounding the second layer. Moreover, the optical fiber cable includes a fourth layer surrounding the third layer. The first layer is a water blocking tape. The second layer is a buffer tube layer made of polyethylene material and foamed with master batch. The third layer is a water blocking tape. The fourth layer is a sheath made of polyethylene material. Moreover, the fourth layer has a plurality of strength members embedded inside the fourth layer.

Optical fiber ribbon duct cable

The present disclosure provides a sensory cable (). The sensory cable () includes a central strength member (). In addition, the sensory cable () includes a first layer (). The first layer () surrounds the central strength member (). The first layer () is made of low smoke zero halogen. Further, the sensory cable () includes a plurality of optical units (). Furthermore, the sensory cable () includes a second layer (). The second layer () is made of a plurality of glass yarns. Moreover, the sensory cable () includes a first jacket layer (). The first jacket layer () is made of either polyethylene or polypropylene. Also, the sensory cable () includes a second jacket layer (). The second jacket layer () is made of nylon.

Direct burial sensory cable

The present disclosure provides an optical waveguide cable. The optical waveguide cable includes one or more optical waveguide bands positioned substantially along a longitudinal axis of the optical waveguide cable. The optical waveguide cable includes one or more layers substantially concentric to the longitudinal axis of the optical waveguide cable. The one or more layers include a cylindrical enclosure. The one or more optical waveguide bands include a plurality of light transmission elements. The density of the cylindrical enclosure is at most 0.935 gram per cubic centimeter. The optical waveguide cable has a waveguide factor of about 44%. The one or more optical waveguide bands are coupled longitudinally with the cylindrical enclosure.

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Gurugram, India

Atul Kumar Mishra