Berkshire Photonics offers two high temperature single-mode fibers; one with a special polymer coating and one with a polyimide coating. High temperature single-mode fibers are optimized for data transmission, high-power laser delivery, and sensors that require special reliability at demanding environment conditions. This fiber can be used in applications requiring the exposure to extreme heat in mining, aerospace, military, and oil & gas. Our high temperature fiber is useful for medium and high temperature environments, with the temperatures reaching up to 300 ºC.