Birch, R.D., Payne, D.N. and Varnham, M.P.
Fabrication of polarisation-maintaining fibres using gas-phase etching
Electronics Letters, 18, (24), . (doi:10.1049/el:19820709).
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A new fabrication technique for the production of high-birefringence fibres is described. The process is shown to produce fibres with a cross-sectional geometry which is close to the optimum predicted by stress analysis. As a result, fibres with extremely short beat lengths (0.55 mm at a wavelength of 633 nm) have been produced.
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