Patent ID: 9178610
Filing Date: 2015-11-03
Classification: H04B,H04J

Abstract:
1. An optical communication device comprising: a transmitter having a transmitter port and transmitting a first multiplexed signal in a first optical spectrum from the transmitter port; a receiver having a loopback port and a receiver port, the receiver receiving the first multiplexed signal in the loopback port and a second multiplexed signal in the receiver port, the second multiplexed signal in a second optical spectrum different from the first optical spectrum, the receiver comprising a demultiplexer in optical communication with the loopback port and the receiver port, the demultiplexer demultiplexing the first and second multiplexed signals received by the loopback and receiver ports; and an optical coupler in optical communication with the transmitter port and the loopback port, the optical coupler routing a threshold percentage of power of the first multiplexed signal to the loopback port.