(1) mode filter:filtering is the removal of advanced modes, just bend a little, the fiber can be used as a mode filter.
(2)Attenuator:An attenuator is a device that reduces the transmitted power in a controlled state. There is a class of attenuator just a few turns of the fiber used for transmission, without introducing external devices at all. Using this attenuator, the amount of attenuation can be controlled by controlling the number of turns the fiber makes at a given radius.
(3) Fusion splicer:Use bending loss to control the quality of the fusion splice. Fusion splicing is the process of joining two fibers together by melting the ends of the fibers together, a process similar to the metal welding process.
(4) fiber optic identifier: fiber optic identifier is an instrument that uses the effect of fiber bending. When the - a fiber bending, some light will be radiated from the fiber, these lights will be detected by the fiber identification instrument, without cutting off the fiber, without interrupting the communication conditions, the technical personnel according to these lights can be multi-core fiber or a single fiber from other fibers to identify, and detect the state and direction of light. Most of the fiber optic identifiers are used for single-mode fiber optic cables with wavelengths of 1310 nm or 1550 nm.
