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An optical fibre switching element has been constructed, based on the electromechanical deformation of a bimorph of piezoclectric polymer, p.v.d.f. (polyvinylidene fluoride). Light transmitted through a fibre was switched between two other fibres situated next to each other by the application of the voltage of 3.5 V r.m.s. at 10 Hz. The insertion loss of this element was 0.7 dB.
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