The optical-fiber identifier enables technicians to trace specific fibers from one point to another without disconnecting them. By detecting live signals and test tones across a broad wavelength range, the device provides instant visual and audible feedback. The instrument works by bending the fiber, causing stress loss, then measuring the light. Live fiber detection is the primary function of a fiber identifier. During installation, maintenance, rerouting, or restoration; it is often necessary to isolate a. To identify a special fiber, bending couplers ae used to determine the correct fiber, especially in the installation, maintenance, or replacement of fibers.
