A fiber loop mirror, or fiber loop reflector, is a simple reflecting device for fiber optics, made by connecting two ports of a fiber coupler with a fiber loop; it can be considered as a Sagnac interferometer. In the linear regime with a 50:50 coupler, it acts as a perfect reflector. By introducing. A Fiber Sensor is a type of Photoelectric Sensor that enables detection of objects in narrow locations by transmitting light from a Fiber Amplifier Unit with a Fiber Unit. These devices are most commonly used in factory automation environments. With applications in lasers, as well as in sensors, they can be used as mirrors or as optical filters.
[PDF Version]