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KVH Introduces ActiveFiber

Photonics Spectra
May 2001
KVH Industries Inc. of Middletown, R.I., presented its ActiveFiber technology at OFC in Anaheim, Calif. The company said that the first ActiveFiber product would be a 40-Gb/s polarimetric modulator for 1550-nm optical communications.

The technology involves the insertion of chromophore-doped electro-optic polymers into the core of a D-shaped optical fiber. When voltage is applied to the polymer, the polymer's optical characteristics change, creating a phase shift that can be used to encode data in the light passing through the fiber. KVH hopes to develop tunable Bragg gratings, optical switches and in-line amplifiers based on the technology.

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