Sterlite Technologies

An optical fiber cable (300) comprising a plurality of optical fibers (100, 200), with one or more core region (102) and a cladding region (108), designed to minimize micro and macro bend losses for high-performance communication systems. In particular, the optical fiber cable (300) includes a plurality of intermittently bonded optical fiber ribbons (804), each consisting of multiple parallel and adjacent optical fibers (100, 200), with bonded regions providing structural integrity. Further, each optical fiber (100, 200) within the ribbons (804) features one or more glass core regions (102) and a cladding region (108), optimized to reduce signal loss.

The present disclosure relates to an optical unit for optical fiber cable (100) comprising one or more unified fiber elements (UFEs) (200). Further, each UFE (200) comprises one or more optical fibers (112) and one or more tensile yarns (108) embedded in resin layer (106) forming an integral unit.

The present disclosure relates to an optical fiber (100) for reduced loss, achieved through a deep trench structure formed and is bend-insensitive consists of a core region (102) with a relative refractive index (RI) ranging from 0.15% to 0.45%, surrounded by a cladding region (108) containing at least one low RI region (104) defined by a trench RI profile having a gradual decrease in RI. In particular, the minimum trench relative RI (Δt_min) ranges from -0.36% to -0.7%, and the thickness (T) of the low RI region (104)is between10 µm to 16 µm. Further, the low RI region (104) is formed by doping fluorine into the porous core soot preform in the presence of fluorine-containing gases and carrier gases, ensuring efficient fabrication of optical fibers (100) with enhanced bend performance, low attenuation, and minimal micro bend losses, suitable for highperformance telecommunications.

The present disclosure relates to optical fiber enclosure (100) for managing and protecting optical fibers comprising a support frame (102) and a stack of splice trays (104), where each splice tray in the stack is pivotably movable in an unlocked configuration and one or more enfolds (106) that are removably attached to the top of the stack of splice trays (104), with each enfold featuring restricting features (108). In particular, the stack contains multiple splice trays (104_1....104_n), arranged in parallel, allowing for efficient optical fiber management. The enclosure (100) also includes Further, restricting features (108) engage with the locking interface(110) between the support frame (102) and the top splice tray (104₁) in a locked configuration, thereby restricting the movement of the top splice tray (104₁) and subsequently locking the stack of splice trays (104) in place.

The present disclosure provides an optical fiber (10) comprising one or more glass cores (12, 12₁, 12₂, 12₃, 12₄) extending along a length of the optical fiber (10) and a glass cladding (14) with a peripheral region (16), one or more interface regions (18, 18₁, 18₂, 18₃, 18₄) and one or more intermediate regions (20, 20₁, 20₂, 20₃, 20₄). The optical fiber (10) comprises an alumina (Al₂O₃) doping in the entire glass cladding (14) or at least one of the peripheral region (16), the one or more interface regions (18, 18₁, 18₂, 18₃, 18₄) and the one or more intermediate regions (20, 20₁, 20₂, 20₃, 20₄), provided that, when the optical fiber (10) comprises a single glass core (12), the alumina doping in the intermediate regions (20, 20₁, 20₂, 20₃, 20₄) is distributed among multiple intermediate regions (20, 20₁, 20₂, 20₃, 20₄) or included in combination with alumina doping in at least one of the peripheral region (16) and the one or more interface regions (18, 18₁, 18₂, 18₃, 18₄).

The present disclosure provides a method for performing curing during manufacturing of an optical fibre ribbon. The method performs a first stage of curing and a second stage of curing on a matrix material of the optical fibre ribbon. The first stage of curing is performed using a ribbon die (102) and one or more ultraviolet light emitting diode (UV LED) units (104). Further, the second stage of curing is performed using a source (202) of the one or more ultraviolet lamps (UV lamps) in an UV chamber (204).

The present disclosure relates to a fiber enclosure (300) for receiving and managing a plurality of optical fibers including a housing defining an interior volume, a plurality of input ports (308) provided on at least one of the sidewalls (304), a plurality of fanout units (310, 312) disposed within the housing, a multi-tiered adapter frame (402) comprising a stair arrangement removably mounted within the interior volume of the housing and and a plurality of optical fiber adapters (404). Further the multi-tiered adapter frame (402) includes a plurality of horizontally-extending step portions (412) separated by vertically-extending riser portions (430). Each of the horizontally-extending step portions (412) lie in a horizontal plane vertically offset from adjacent horizontally-extending step portions (412).

The present invention relates to an optical fiber (100, 200, 300, 400) comprising one or more cores (102), a clad enveloping the one or more cores and a buffer clad layer (202, 302, 402) between the first clad layer and the second clad layer. Particularly, the clad includes a first clad layer (104) is made of silica with less than 0.1% metallic impurity and a second clad layer (106) is made of silica with greater than 0.1% of metallic impurity. Further, the first clad layer has less than 800 ppm OH content, less than 10 ppm aluminium and less than 2 ppm sodium and the second clad layer has less than 50 ppm OH content, more than 10 ppm aluminium and more than 2 ppm sodium.

The present disclosure provides a hardened connector (100) configured to engage with a port (52) of an optical fiber terminal (50) comprises a multi-part assembly (102) with protruded skirt (108) positioned between a front end (104) and a rear end (106); a first intermediate portion (110) positioned between the rear end (106) and the protruded skirt (108) and a channel (130) formed between plurality of extended fingers and a recessed portion (118) configured to receive a mating protrusion (56) provided in the port, thereby enabling alignment of the hardened connector in the port of the optical fiber terminal. The protruded skirt (108) and the first intermediate portion (110) enable locking of the hardened connector (100) within the port, when the front end of the hardened connector is pushed into the port.

The present disclosure provides a fiber optic closure with a splicing tray support unit, a fiber guiding unit disposed in the splicing tray support unit. The fiber guiding unit comprises the first and second set of guide structures adapted to route one or more incoming optical fibers and one more outgoing optical fiber, respectively, passing through the fiber guiding unit. Further, the fiber optic closure has one or more wings pivotally mounted on the splicing tray support unit, and adapted to allow passage of the one or more fiber cables in one or more routing configurations.