The fire detection optical fiber, formally known as the flame detection optical fiber, is an essential component of a flame detection system used to transmit the optical signal from the furnace flame to the detection probe. Typically, this fiber has two ends: a light measurement end and an output end; based on its light-guiding material, it can be classified into glass optical fibers and quartz optical fibers. Depending on the flame spectral distribution characteristics of different fuels during combustion, flame detection optical fibers can be categorized into infrared (IR), ultraviolet (UV), and visible light (VL) flame detection optical fibers.

Glass optical fiber is produced by drawing multi-component optical glass and possesses excellent light transmission properties; therefore, glass optical fiber is predominantly used for infrared flame detection fibers in boiler flame detection systems at thermal power plants.

The glass optical fibers developed by the company have been scaled up for mass production and are widely used in flame detection systems for boilers in thermal power plants. Through independent R&D efforts and the integration of advanced international technologies, the company has acquired cutting-edge domestic production technologies and equipment for non-communication optical fibers. This enables the company not only to supply customers with high-quality, cost-effective optical fiber product lines but also to provide comprehensive technical support services and tailored system solutions.

Glass optical fiber utilizes imported optical glass as the light-transmitting material; it is available in various core diameters and numerical apertures, featuring a broad spectral transmission range and high light transmission efficiency, with a maximum operating temperature of 450°C.