Fire Resistant, All Dielectric Fiber Optic Cable

A fiber optic cable comprising:

• a core comprising:
• a central strength member, and
• a plurality of buffer tubes arranged around the central strength member, each of the plurality of buffer tubes containing a plurality of optical fibers;
• a first mica layer arranged around the core;
• a glass yarn layer surrounding and in direct contact with the first mica layer;
• an inner sheath surrounding the glass yarn layer;
• a second mica layer surrounding the inner sheath;
• an outer sheath surrounding the second mica layer;
• and
• a water swellable material interposed between the core and the first mica layer, or between the glass yarn layer and the inner sheath, or between the inner sheath and the second mica layer, wherein each of the plurality of buffer tubes comprise a water-blocking filling material comprising a silicone gel, wherein the silicone gel has a drop point of at least 200° C., wherein the fiber optic cable is a first resistant all dielectric fiber optic cable.

A fiber optic cable comprising:

• a core comprising:
• a central strength member, and
• a plurality of buffer tubes arranged around the central strength member, each of the plurality of buffer tubes containing a plurality of optical fibers;
• a first mica layer arranged around the core;
• a glass yarn layer surrounding and in direct contact with the first mica layer;
• an inner sheath surrounding the glass yarn layer;
• a second mica layer surrounding the inner sheath;
• an outer sheath surrounding the second mica layer, wherein the inner sheath or the outer sheath is made of a flame retardant LSoH polymer-based material;
• and
• wherein each of the plurality of buffer tubes comprise a water-blocking filling material comprising a silicone gel, wherein the silicone gel has a drop point of at least 200° C., wherein the fiber optic cable is a first resistant all dielectric fiber optic cable.