The fiber, either single-mode or multimode type, are positioned in a loose tube made of a high modulus plastic. The tubes are filled with a water-resistant filling compound. A Fiber Reinforced Plastic (FRP) locates in the center of the core as a non- metallic strength member. Tubes (and fillers) are stranded around the strength member into a compact and circular cable core. The cable core is filled with a filling compound and covered with a thin layer of Polyethylene (PE) inner sheath. A layer of Aramid yarn is applied around the cable core as an additional strength member. The cable is completed with a Polyethylene (PE) or Fire Retardant LSZH sheath.