Patent ID: 9553691
Date: 2017-01-24
CPC Classifications: H04B,H04J

Claim:
1. A system for transmitting a message from a source entity to a target entity, said system comprising: an input unit; an optical transmission device, and an output unit, wherein the input unit is connected to the source entity to transmit the message via the optical transmission device to the output unit for re-directing the message to the target entity, and wherein the optical transmission device is configured for transmiting the message unidirectionally from the input unit to the output unit, and duplicating an optical input signal containing the message into at least two optical output signals respectively containing the message to be transmitted to the output unit the optical transmission device comprising: an input optical switch configured and arranged to receive the message coming from the source entity and to include the message into an optical signal to be transmitted to an optical duplicator via a first optical link, the optical duplicator being configured and arranged to duplicate the received optical signal into at least two duplicated optical signals to be transmitted respectively to at least two output optical switches via respective optical links, the at least two output optical switches being configured and arranged to retransmit the messages of the duplicated optical signals to the target entity; and a return optical link configured and arranged to transmit at least one of the duplicated optical signals to the input unit.