A Study for Stable Measurement of Optical Signal Power in an Optical Fiber Using an Improved Optical Fiber Identifier

Abstract

Optical signal power estimation utilizing an improved optical fiber identifier is experimentally evaluated. In order to realize fine measurement, a mechanical bend adjuster and fiber guides attached to both side of the identifier are introduced. The former is useful for stabilizing the identifier operation in consequence of well controlled bend of the test fiber. The latter is effective for eliminating influence of fiber handling. As a result, standard distribution of the measured optical power of less than 0.16dB is obtained, which seems to be enough small for the field use.