METHOD OF DETERMINING REFLECTION COEFFICIENT IN DETACHABLE CONNECTION OF OPTICAL FIBERS Russian patent published in 2020 - IPC G01M11/02 

FIELD: fiber-optic communication equipment.

SUBSTANCE: invention relates to fiber-optic communication equipment, and can be used for rapid determination of reflection coefficient in detachable connections of optical fibers. According to the method of determining the reflection coefficient in a detachable optical fiber connection, a database of reference images of the end surface of a ferrule of a fiber-optic connector of a given type with installed optical fibers of appropriate type from a given pair of single- or multi-type optical fibers, each of which is assigned a unique identifier, for each reference image of the end surface of the ferrule of the fiber-optic connector with the assigned unique identifier, the actual value of the reflection coefficient for the detachable connection of said pair of optical fibers is determined, when determining the condition of passing the purity test of the entire end surface of the ferrule of the second connector with the installed second optical fiber from that pair, the reference images, the identifiers assigned to them and the reflection coefficient values fill the database. Then image of end surface of ferrule of tested fiber-optic connector is removed with installed optical fibers, it is compared with reference images of data base of end surfaces of ferrule of fiber-optic connector with optical fiber of same type, finding a reference image from a database, as per the set of corresponding criteria and attributes, closest to the image of the end surface of the ferrule of the tested fiber-optic connector, putting it in compliance with the personal identifier of this reference image and then the corresponding sought value of the reflection coefficient.

EFFECT: possibility of determining the reflection coefficient in a detachable connection as a pair of single-type optical fibers, including a diameter of the core which is larger than that of single-mode optical fibers, and pairs of different-type optical fibers.

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