Patent ID: 8903243

Claim:
An oilfield optical data transmission assembly joint, the joint comprising: a stationary housing having a stationary termination for receiving a stationary optical fiber; a rotatable coupling at least partially located in the stationary housing, wherein the rotatable coupling comprises: a channel having a central axis; a rotatable optical termination located in the channel, wherein the rotatable optical termination is configured to receive a rotatable optical fiber and interfacing the rotatable optical fiber with the stationary optical fiber to provide communication between the rotatable optical fiber and the stationary optical fiber; a chamber located on a side of the rotatable coupling offset from the central axis, wherein the chamber is configured to receive a cable bundle that includes the rotatable optical fiber and electrical lines, and wherein an electrical junction is located on the coupling and configured to receive the electrical lines; and a slip-ring interface between the stationary housing and the coupling for receiving electrical lines from the electrical junction, and enabling electrical communication, power communication, or combinations thereof between the stationary housing and the rotatable coupling.