Patent ID: 9154220
Filing Date: 2015-10-06
Classification: G02B,H04B,H04J

Abstract:
1. An optical switching device comprising: a multicore fiber having a plurality of cores for transmitting at least one of an active signal and a standby signal, and a supervisory control signal; a failure detection unit for detecting occurrence of a transmission failure of the active signal based on a transmission condition of the active signal and information from the supervisory control signal; and a supervisory control unit for switching a transmission path of the active signal upon reception of the information on the detected transmission failure from the failure detection unit, wherein: the supervisory control signal is transmitted to the core surrounded by the cores to which at least one of the active signal and the standby signal is transmitted; and upon detection of the occurrence of the transmission failure of the active signal by the failure detection unit, the supervisory control unit switches the standby signal to the core different from the one to which the active signal is transmitted.