Patent ID: 8807846

Claim:
A pluggable optical transceiver comprising: a top housing; a bottom housing; and an optical-electrical assembly enclosed by the top housing and the bottom housing, the optical-electrical assembly comprising: a substrate; at least a transmitting optoelectronic component disposed on the substrate; at least a receiving optoelectronic component disposed on the substrate; interface integrated circuits disposed on the substrate; a pluggable electrical interface disposed on the substrate and electrically connected with the interface integrated circuits; and a coupling optical system comprising an external pluggable optical interface, a coupling optical element fixedly mounted on the substrate, and a light-guiding structure optically connecting the external pluggable optical interface and the coupling optical element; wherein: the coupling optical element is configured to couple a first optical signal from the transmitting optoelectronic component to the light-guiding structure, and to couple a second optical signal from the light-guiding structure to the receiving optoelectronic component; the light-guiding structure is configured to couple the first optical signal to the external pluggable optical interface, and to couple the second optical signal from the external pluggable optical interface; and the external pluggable optical interface is configured to couple the first optical signal to an external transmitting optical fiber, and to couple the second optical signal from a receiving fiber.