Abstract: The present invention discloses a preform assembly and a method for drawing a multicore optical fibre and a holey fibre. Particularly, the preform assembly includes a hollow cylindrical tube, a plurality of discs stacked inside the hollow cylindrical tube and a plurality of core rods inserted in a plurality of through holes in each of the plurality of discs.

Abstract: The present disclosure provides a multi-core fiber (MCF) and manufacturing method thereof and an MCF marker (or marker). The MCF (100) comprises a plurality of cores (102) and a marker (108). Each core is associated with a core diameter (104) and a core-placement-radius (106) and the marker (108) is associated with a marker diameter (110) and a marker-placement-radius (112). The marker has a marker core (116) and a marker clad (118) with a D/d ratio between 5 to 20. During manufacturing, the MCF is drawn from a preform assembly (200) having a top hollow handle (202) with a handle thickness (114) attached on a top end of a glass preform (204) that has a plurality of core holes (206) and a marker hole (210), wherein the marker hole (210) is at least partially covered by the top hollow handle of the handle thickness (114).

Abstract: Disclosed is a multi-core optical fiber having a plurality of cores extending parallelly along a central axis of the multi-core optical fiber. Each core of the plurality of cores is up-doped with an up-dopant. The multi-core optical fiber further has a plurality of buffer layers such that each buffer layer of the plurality of buffer layers envelop a corresponding core of the plurality of cores. Each buffer layer of the plurality of buffer layers has a predefined buffer layer thickness. The multi-core optical fiber further has a plurality of trench layers such that each trench layer of the plurality of trench layers envelops a corresponding buffer layer of the plurality of buffer layers. Each trench layer of the plurality of trench layers is down-doped with a down-dopant. The multi-core optical fiber has an inter-core crosstalk of less than ?30 decibel/kilometres (dB/km) at a wavelength of 1550 nanometres (nm).

Abstract: The present disclosure provides a protected cable connector assembly. The protected cable connector assembly includes a cable gland body, a gland nut, a grommet, an optical fibre cable, a protected connector and a protective grip. The cable gland body includes a first threaded portion, a second threaded portion and an unthreaded portion. The gland nut includes internal threads. In addition, the internal threads of the gland nut engage with threads of the first threaded portion of the cable gland body. Further, a total length of the gland nut is about 17.87 millimeters. The grommet is positioned partially inside the cable gland body. The protected cable connector enables the optical fibre cable to terminate into an optical fibre distribution box.

Abstract: The present disclosure provides an optical fibre ribbon. The optical fibre ribbon includes a plurality of optical fibres. The plurality of optical fibres is in range of about 4 to 12. In addition, each of the plurality of optical fibres is characterized by diameter. Further, the optical fibre ribbon has a pitch dpitch. Furthermore, the optical fibre ribbon is compatible with standard 250 micron optical fibre for fusion splicing. Also, the optical fibre ribbon is characterized by planarity. Also, the optical fibre ribbon is characterized by a cured coating. Also, the cured coating has characteristic of a glass transition temperature. Also, the glass transition temperature facilitates change in state of the optical fibre ribbon from hard brittle state to soft rubbery state.

Abstract: The present disclosure provides an optical fibre ribbon (100) with intermittent bonding. The optical fibre ribbon (100) includes a plurality of optical fibres (102). The plurality of optical fibres (102) are placed parallel to each other. The plurality of optical fibres (102) adjacent to each other are bonded intermittently along a length. The optical fibre ribbon (102) has a bond ratio of about 15 to 22. The bond ratio is a ratio of a number of a plurality of bonds (106) per unit length of the optical fibre ribbon (100) to a number of optical fibres in the optical fibre ribbon (100).

Abstract: The present disclosure provides an intermittently bonded optical fibre ribbon. The intermittently bonded optical fibre ribbon includes a plurality of optical fibres such that adjacent optical fibre of the plurality of optical fibres is bonded intermittently along the length by a plurality of bonds. The plurality of bonds is defined by a plurality of colours. The plurality of bonds may form a predefined pattern. The predefined pattern may be used for identification of the intermittently bonded optical fibre ribbon.

Abstract: The present invention relates to a rapid optical fiber link restoration solution rapidly deployed by pulling, blowing, jetting or hanging in an aerial, on-ground, underground or inside a duct includes an optical fiber connector and an optical fiber cable. The optical fiber connector is connected at both ends of the optical fiber cable. Particularly, the optical fiber cable is dielectric and has a tensile strength 2500 N and a crush resistance of 2000 N/100 mm. Moreover, the optical fiber connector has water resistance for 1.5 meters of water-head for a maximum period of 30 minutes.

Abstract: The present disclosure provides an optical fiber cable (200, 300) with a compressed core (206, 306) and manufacturing method thereof. The method includes bundling a plurality of optical transmission elements (202, 302) to form a core (206, 306) of the optical fiber cable (200, 300) and compressing the core (206, 306). The method further includes extruding a sheath (212, 312) around the compressed core (206, 306), wherein the core (206, 306) is compressed to a smaller diameter by a compression tool. The compression tool has a cylindrical cavity, wherein an internal diameter of the cylindrical cavity gradually decreases from a first end to a second end of the compression tool. The core enters from the first end of the compression tool with a diameter d and exits from the second end with a diameter d-?d, such that ?d/d is greater than or equal to 0.05.

Abstract: The present invention relates a system and a method for optimizing Physical Cell ID (PCI) assignment in a wireless communication network such as an Open-Radio Access Network (O-RAN) (100). The method includes deploying an optimization service in an rApp (104) and registering the optimization service as a PCI-rApp within a Service Management and Orchestration Framework (SMO) (102), assigning a listing of unique predefined PCIs to operating cells of a selected range after satisfying one or more constraints and concluding that the procedure has been successful if the assignment of the PCI to each operating cell completes without using more than the listing of unique predefined PCIs.

Abstract: The present invention relates to a method and a system of managing a plurality of neighbor cells of each target cell. The method includes capturing and reporting, by a central unit (CU) (512) associated with each target cell, a radio signal quality associated with each of the plurality of neighbor cells (354b, 354c, 354d) of a target cell (354a) based on signal strength measurements reported by a plurality of user equipments (UEs) (324a1, 324a2, 324a3) to the target cell, ranking and labeling the plurality of neighbor cells based on the radio signal quality associated with each of the plurality of neighbor cells and taking and managing an action based on the ranking and labeling. Particularly, the action is associated with the plurality of neighbor cells.

Abstract: The present disclosure provides an intermittent tape (100) disposed of around a pair of conductors. The intermittent tape (100) has a top dielectric layer (102), a bottom dielectric layer (106) and a conductive layer (104). The conductive layer (104) is sandwiched between the top dielectric layer (102) and the bottom dielectric layer (106). The conductive layer (104) includes conductive segments (108) and non-conductive segments (110). The non-conductive segments (110) are defined by an absence of the conductive segments (108). The conductive segments (108) and the non-conductive segments (110) are arranged alternatingly. A width of the non-conductive segments (110) between the conductive segments (108) is constant.

Abstract: The present disclosure provides ribbed and grooved sheath for optical fiber cables. An optical fiber cable (100) comprises one or more optical transmission elements (118) and a sheath (102) surrounding the one or more optical transmission elements (118). An outer surface of the sheath (102) has a plurality of ribs (104, 106, 108) and a plurality of grooves (110, 112) such that at least one groove has unequal groove width and/or at least one rib has unequal rib width. The plurality of ribs (104, 106, 108) is continuous and parallel on the outer surface. Alternatively, the plurality of ribs (104, 106, 108) is discontinuous.

Abstract: The present disclosure provides an intermittently bonded optical fibre ribbon. The intermittently bonded optical fibre ribbon includes a plurality of optical fibres. The plurality of optical fibres are bonded intermittently along the length by a plurality of bonded portions spaced apart by a plurality of un-bonded portions. The plurality of bonded portions is defined by a bonded length Li and the plurality of un-bonded portions is defined by an un-bonded length. In addition, at least one of the bonded length Li and the un-bonded length varies along a predefined length of adjacent optical fibres of the plurality of optical fibres.

Abstract: Disclosed is a multi-core optical fiber having a plurality of cores extending parallelly along a central axis of the multi-core optical fiber. Each core of the plurality of cores is up-doped with an up-dopant. The multi-core optical fiber further has a plurality of buffer layers such that each buffer layer of the plurality of buffer layers envelop a corresponding core of the plurality of cores. Each buffer layer of the plurality of buffer layers has a predefined buffer layer thickness. The multi-core optical fiber further has a plurality of trench layers such that each trench layer of the plurality of trench layers envelops a corresponding buffer layer of the plurality of buffer layers. Each trench layer of the plurality of trench layers is down-doped with a down-dopant. The multi-core optical fiber has an inter-core crosstalk of less than ?30 decibel/kilometres (dB/km) at a wavelength of 1550 nanometres (nm).

Abstract: A strength member (202, 302) for use in an optical fiber cable and manufacturing method thereof are provided. The strength member comprises a polymer matrix reinforced with one or more yarns, wherein the polymer matrix is a blend of a resin and an inorganic filler. The resin is a polyurethane resin and the inorganic filler is one or more of Magnesium Hydroxide, Aluminium Trihydrate, Zinc borate, Antimony Trioxide, Ammonium Polyphosphate, molybdate based filler and clay nanocomposite. The manufacturing method includes coating the one or more strength yarns with the polymer matrix and curing of the polymer matrix. The inorganic filler is blended in third wet bath of the resin followed by two wet baths of the resin only and the resin is cured after each wet bath. The strength member produces a smoke density of less than 170 at heat flux 50 kW/m2 for 20 minutes.

Abstract: Disclosed is a multi-core optical fiber including a plurality of cores extending parallelly along a central axis of the multi-core optical fiber, and defining a plurality of spatial paths such that each core of the plurality of cores has a refractive index profile having a predefined core alpha value in a range from about 5 to about 9. A core pitch between each pair of cores of the plurality of cores is in a range from about 35 micrometres to about 45 micrometres. Further, at least one core of the plurality of cores has (i) a refractive index profile different from other cores of the plurality of cores, and (ii) a core diameter different from the other cores of the plurality of cores.

Abstract: An optical fiber cable with movable rip cord is provided. The optical fiber cable (100, 200, 300) comprises a core (110) having one or more optical transmission elements (114), a first layer (106) surrounding the core, a second layer (102) surrounding the first layer, wherein the second layer is relatively harder than the first layer and one or more rip cords (108) placed between the first layer and the second layer such that the one or more rip cords have a degree-of-angular movement less than ±d, wherein d is an angular distance between two consecutive rip cords of the optical fiber cable. The first layer is deformed radially towards a central axis (X) of the optical fiber cable in vicinity of the one or more rip cords, wherein deformation (116) of the first layer is equal to or greater than a diameter of the one or more rip cords.

Abstract: The present disclosure provides an optical fiber cable (200, 300) with a compressed core (206, 306) and manufacturing method thereof. The method includes bundling a plurality of optical transmission elements (202, 302) to form a core (206, 306) of the optical fiber cable (200, 300) and compressing the core (206, 306). The method further includes extruding a sheath (212, 312) around the compressed core (206, 306), wherein the core (206, 306) is compressed to a smaller diameter by a compression tool. The compression tool has a cylindrical cavity, wherein an internal diameter of the cylindrical cavity gradually decreases from a first end to a second end of the compression tool. The core enters from the first end of the compression tool with a diameter d and exits from the second end with a diameter d-?d, such that ?d/d is greater than or equal to 0.05.

Abstract: The present disclosure provides an optical fiber cable (100). The optical fiber cable (100) includes one or more optical fiber (102), one or more loose tube (104) surrounding the one or more optical fiber (102) and an outer sheath (108) surrounding the one or more loose tube (104). The material composition of the one or more loose tube (104) is a mixture of a first material and a second material. The flexural modulus of the first material is at least 1000 MPa. The flexural modulus of the second material is at most 50 MPa. The material composition of the outer sheath (108) is a mixture of a first material and a second material. The flexural modulus of the first material is at least 500 MPa. The flexural modulus of the second material is at most 50 MPa.