An optical device includes a first optical port connected to a first optical fiber, and a second optical port connected to a second optical fiber. The optical device further includes first optical components that switch first optical traffic carried via a first set of optical channels from the first optical port to the second optical port, and second optical components that switch second optical traffic carried via a second set of optical channels from the second optical port to the first optical port. The second set of optical channels includes different optical channels than the first set of optical channels. The optical device also includes a receiver that coherently detects portions of the first optical traffic and the second optical traffic, and converts the detected portions of the first and second optical traffic to electrical signals for delivery to a node or network external to the optical device.