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New polarisation-state control device: rotatable fibre cranks

New polarisation-state control device: rotatable fibre cranks

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© The Institution of Electrical Engineers
Published

A new all-fibre device for controlling the state of polarisation (SOP) in a single-mode fibre is proposed. It consists of two fibre elements called rotatable fibre crank (RFC) elements, each of which is equivalent to a rotatable phase plate. It features a very low insertion loss when used in a fibre circuit, because it can be spliced with input and output fibres, and that the control is endless as in a rotatable phase plate. The effectiveness of the SOP control using this device is verified experimentally.

Inspec keywords: polarisation; optical fibres

Other keywords: rotatable phase plate; fibre circuit; state of polarisation control; polarisation-state control device; SOP control; RFC; single-mode fibre; all-fibre device; rotatable fibre cranks; low insertion loss

Subjects: Fibre optics and fibre waveguides; Fibre optics

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