Sterlite Technologies Limited

Pavan Kumar Moturu

Kishore Chandra Sahoo

Atul Kumar Mishra

Venkatesh Murthy

Kavya Chintada

Sravan Kumar Peraka

Sravan Kumar

Kangabam Tenzing

Vikash Shukla

Mahesh Deshpande

Atul Mishra

Gahininath Shinde

Prassana Pardeshi

Santosh Akundi

The present disclosure relates to method for underground installation of a pre-ducted optical fiber cable assembly. The method includes a first step of drilling a first pilot bore from a second manhole to a first manhole. In addition, the method includes a second step of pulling the pre-ducted optical fiber cable assembly. Further, the method includes a third step of drilling a second pilot bore from a third manhole to the second manhole. Furthermore, the method includes a fourth step of pulling the pre-ducted optical fiber cable assembly from the second manhole to the third manhole. Moreover, the method of underground installation of the pre-ducted optical fiber cable assembly eliminates the need for blowing the pre-ducted optical fiber cable assembly with a cable blowing machine.

Installation of pre-ducted optical fiber cable assembly

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 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 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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Aurangabad, India

Pavan Kumar Moturu