Patent ID: 11894916
Assignee: ECI TELECOM LTD.
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A multi-band interface device for optical networks, comprising:
an optical amplifier including:
first ingress ports configured to receive optical transmissions in multiple transmission bands, a first port of the first ingress ports configured to receive a first optical input transmission in a first band of the multiple transmission bands; and
a first egress port configured to provide first optical output transmissions in the multiple transmission bands; and

an amplifier noise source:
including a second ingress port configured to receive a second optical input transmission in the first band;
including a second egress port communicatively connected to the first port of the optical amplifier; and
configured to generate the first optical input transmission by amplifying a combination of a bulk noise and the second optical input transmission, a magnitude of the amplification being dependent on a power of the second optical input transmission.