Patent ID: 8317413

Claim:
A packaged fused-fiber device, comprising: a fused-fiber device having at least one input fiber and at least one output fiber, and a fused-fiber portion having a first and second end between said input fiber and said output fiber; a concave shaped substrate comprising an inside surface and an outside surface, wherein a minimum distance from each point on said inside surface to said outside surface is substantially constant throughout a cross-section of said substrate, wherein said cross-section is non-enclosing and includes an open portion along a length direction of said substrate perpendicular to ends of said substrate; an affixment material for securing said first and said second end of said fused portion to said inside surface of said substrate, and a housing in thermal contact with said outside surface of said substrate, wherein a minimum distance from each point on said outside surface of said substrate to said housing is substantially constant throughout said cross-section of said substrate.