Fiber Optic Current Sensors

Fiber Optic Current Sensors are resistant to effects from magnetic or electrical field interferences. Consequently, they are ideal for the measurement of electrical currents and high voltages in electrical power stations [14],[15]. Fiber Optic Current Sensors are able to replace existing solutions based on the Hall effect, which tend to be bulky and heavy. In fact, those used for high-end currents can weigh as much as 2000 kg compared to Fiber Optic Current Sensors sensing heads, which weigh less than 15 kg. Fiber Optic Current Sensors have the advantage of simplified installation, increased accuracy and negligible power consumption. The sensing head usually contains a semiconductor light source module, typically an SLED, which is robust, operates in extended temperature ranges, has verified lifetimes, and is cost-effective. EXALOS is offering cooled butterfly (EXS210032, [2]) and uncooled TOSA (EXS210028, [2]) SLED modules at 1300 nm with extended operating hours of several ten thousand hours for Fiber Optic Current Sensors applications. (EXS210032, EXS210028)