Abstract: A deterioration estimation method according to one embodiment is a deterioration estimation method for estimating deterioration of a blade of an optical fiber cutter that cuts an optical fiber. The deterioration estimation method includes a process of determining a state of an end face of the optical fiber cut by the blade and a process of estimating from a determination result for the end face whether or not the blade is deteriorated.

Abstract: A fusion splicing system according to one embodiment includes: first and second electrodes that fusion-splice optical fibers by discharge; a fusion splicing device that has a discharge circuit that outputs a control signal to the first electrode and receives a feedback signal of the control signal from the second electrode; and a deterioration determination unit that determines from a state of the feedback signal whether or not the first electrode and the second electrode are deteriorated.

Abstract: A system for releasing locking of a fusion splicer includes a fusion splicer, an information terminal, and a server. The fusion splicer locks a fusion-splicing function in accordance with a predetermined lock condition and releases the locked function in accordance with a release command input. The server includes a storage unit that stores authentication information provided by a user of the fusion splicer, a collation unit that collates authentication information provided from the information terminal with the authentication information stored in the storage unit, and a password issuance unit that issues a one-time password including at least a date in an algorithm when a collation result is favorable. The information terminal authenticates the one-time password in consideration of a day difference or a time difference between the information terminal and the server and applies the release command to the fusion splicer when an authentication result is favorable.

Abstract: A fusion splicing system includes a fusion splicer configured to perform fusion splicing of optical fibers, and a server configured to receive fusion splicing data pertaining to the fusion splicing from an information terminal capable of communicating with the fusion splicer, or the fusion splicer via a communication network. The fusion splicing data includes first identification information for identifying a project to which the fusion splicing belongs. The server retains second identification information related to a registered project registered in advance, compares the first identification information with the second identification information, and interrelates the fusion splicing data with the registered project indicated by the second identification information when the first identification information coincides with the second identification information.

Abstract: A system for releasing locking of a fusion splicer includes a fusion splicer, an information terminal, and a server. The fusion splicer locks a fusion-splicing function in accordance with a predetermined lock condition and releases the locked function in accordance with a release command input. The server includes a storage unit that stores authentication information provided by a user of the fusion splicer, a collation unit that collates authentication information provided from the information terminal with the authentication information stored in the storage unit, and a password issuance unit that issues a one-time password including at least a date in an algorithm when a collation result is favorable. The information terminal authenticates the one-time password in consideration of a day difference or a time difference between the information terminal and the server and applies the release command to the fusion splicer when an authentication result is favorable.

Abstract: A management system of a fusion splicer for selecting an appropriate maintenance base when the fusion splicer malfunctions. The management system includes a determination unit configured to determine a type of a failure mode of the fusion splicer, an acquisition unit configured to acquire position information of the fusion splicer, and a selection unit configured to select an appropriate maintenance base on the basis of the type of the failure mode determined by the determination unit and the position information of the fusion splicer acquired by the acquisition unit.