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Measurements on borosilicate fibres with noncircular cores indicate that the noncircular geometry and the associated stress-induced birefringence alone are not sufficient to maintain polarisation in single-mode fibres. To achieve single polarisation fibres, it is necessary to deliberately enhance the anisotropic birefringence.
Inspec keywords: birefringence; optical fibres; borosilicate glasses; light polarisation
Other keywords:
Subjects: Fibre optics and fibre waveguides; Fibre optics