As the leading supplier of downhole fiber optic cable used in the oil and gas industry, AFL provides the largest portfolio of downhole products on the market. AFL’s unique patented solution for oil and gas well applications >150ºC is the High-Temperature Downhole Cable. Constructed with a three-layer, all-metal design, the High-Temperature Downhole Cable provides both an inner and outer layer of stainless-steel tubing to protect against temperatures exceeding 300ºC and a secondary layer of aluminum to inhibit hydrogen permeability and extend the life of the optical fiber. By using an all-metal design, the concern of polymers at elevated temperatures is eliminated and a more stable performance is achieved. Like most of AFL’s downhole cables, the High-Temperature Downhole Cable can be customized with a variety of alloys to meet the user’s needs.