Fault detection, isolation, and open fiber control in transparent all-optical networks

This paper investigates fault surveillance and fault identification mechanisms and open fiber management protocols for a transparent optical network in which data travels optically from the source node to the destination node without going through any optical-to-electrical (O/E) or electrical-to-optical (E/O) conversion. These mechanisms allow non-intrusive device monitoring without requiring any prior knowledge of the actual protocols being used in the data transmission.