METHOD OF OPTICAL POWER LOSS DETERMINATION IN DETACHABLE INTERCONNECTION OF OPTICAL FIBERS Russian patent published in 2019 - IPC G01M11/02 G01M11/08 

FIELD: fiber-optic communication equipment.

SUBSTANCE: invention relates to fiber-optic communication equipment and can be used to determine optical power losses in detachable connections of optical fibers. Method of determining optical power loss in a detachable optical fiber connection is as follows. Database of reference images of the end face surface of a ferrule of a fiber-optic connector of a given type with installed optical fibers of the appropriate type from a given pair of single-type or different-type optical fibers is pre-created. Each reference image is assigned a unique identifier. For each reference image with a unique identifier assigned, the actual value of the insertion loss of optical power is determined for detachable connection of said pair of optical fibers. Value of introduced losses is determined under condition of passage of purity test of entire end surface of ferrule of second connector with installed second optical fiber from this pair. Reference data are filled with reference images, assigned identifiers and loss values. Then, the image of the ferrule end surface of the tested fiber-optic connector is picked up with the installed optical fibers. Captured image is compared with the reference images of the data base of the end surfaces of the ferrule of the fiber-optic connector and the optical fiber of the same type. Reference image from the database is found from the set of corresponding criteria and features closest to the image of the end surface of the ferrule of the tested fiber-optic connector. Image of the tested surface is matched with the personal identifier of the found reference image and the corresponding unknown value of optical power loss.

EFFECT: technical result consists in enabling determination of losses of optical power in a detachable connection as a pair of single-type optical fibers, including with a diameter of the core increased relative to single-mode optical fibers, and pairs of different-type optical fibers.

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