Compagnie Lyonnaise De Transmissions Optiques

Alain Berreby

Daniel Jamet

Claude Oguey

The variable optical attenuator varies the angle and distance of coupling between two fiber ends by moving the end of one of the fibers along a circular arc passing through the end of the other fiber. It comprises a rectangular block 3 to support said fibers 1 and 2, having a slit 6 through its end, running parallel to its broad surfaces and dividing the block into two branches 7, 8, a cylindrical through hole 9 traversing one of the branches 7 substantially in line with the inside end of the slit and opened on the side of the supporting surface 4 of the block to establish the coupling zone between the fibers afixed to said surface, and driving and control means 20, 25 for swivelling the branch 7 carrying one of the fibers, which means act substantially on the free end of said branch 7.

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Yerres, France

Alain Berreby