Patent ID: 8718422

Claim:
An angled coupling for optical fibers, comprising: a body including an incoming aperture and an outgoing aperture; an incoming hollow metal waveguide extending into the body from the incoming aperture and in direct contact with the body; an outgoing hollow metal waveguide in direct contact with the body, separate from and not in contact with the incoming hollow metal waveguide, and extending into the body from the outgoing aperture, wherein the incoming hollow metal waveguide and the outgoing hollow metal waveguide are oriented at an angle to each other, the angle having a vertex; a reflective surface separate from and not in contact with the incoming hollow metal waveguide and the outgoing hollow metal waveguide and situated at the vertex of the angle and having an orientation substantially perpendicular to a bisector of the angle; an incoming coupling structure configured to attach an optical fiber to the incoming aperture; and an outgoing coupling structure configured to attach an optical fiber to the outgoing aperture.