Determination Of The Anisotropy Of Optical Fibers Preforms

Serge Steinblatt

doi:10.1117/12.958393

23 May 1980 Determination Of The Anisotropy Of Optical Fibers Preforms

Serge Steinblatt

Proceedings Volume 0213, Optics and Photonics Applied to Communication and Processing; (1980) https://doi.org/10.1117/12.958393
Event: Optics, Photonics, and Iconics Engineering Meeting, 1979, Strasbourg, France

Abstract

An experimental procedure to determine the optical anisotropy of optical fibers is proposed. The index differences n_z -n_r and n_z-n_e , where (r,e,z) is a cylindrical coordinate system associated to the cylindrical preform, are determined by measuring the change of state of polarisation when a laser beam (reduced in diameter) crosses the preform perpendicular to the axis and at different distances from it. The internal stresses which give rise to this anisotropy may influence the quality of the fiber obtained from the preform, and these stresses could then be modified by thermal treatment. If this is the case, our procedure could be used to control preforms before ftbering.

Citation Download Citation

Serge Steinblatt "Determination Of The Anisotropy Of Optical Fibers Preforms", Proc. SPIE 0213, Optics and Photonics Applied to Communication and Processing, (23 May 1980); https://doi.org/10.1117/12.958393

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