© The Institution of Electrical Engineers
The Letter reports the experimental generation of a linear optical path modulation of 20 λ range with an accuracy of λ/200 (λ = 633 nm) using a servo control system driving an optical fibre stretcher. The error signal is provided by mixing interferometric signals with an electronic oscillator.
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http://iet.metastore.ingenta.com/content/journals/10.1049/el_19931142
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