Guidance for residual stress measurement of optical fibre
Guidance for residual stress measurement of optical fibre
What is PD IEC/TR 62469 - Residual stress measurement of optical fibre about?
The measurement of residual stress distribution in an uncoated glass optical fibre is important as it affects critical fibre parameters such as refractive index, intrinsic polarization mode dispersion, mode field diameter and dispersion. PD IEC/TR 62469 is a technical report that describes a transverse polarimetric method to measure the residual stress profile of any type of optical fibre. The optical polarimetric method is a well-established technique to measure the residual stress of an optical material. PD IEC/TR 62469 describes the principle and detailed procedure for measuring the optical transverse stress profile of a fibre, which is cylindrically symmetric. PD IEC/TR 62469 is based on a polariscope, which is constructed with a fixed polarizer, a quarter-wave plate, and an analyzer. An optical tomographic technique is also described for measuring the stress profile of a fibre with a cylindrically non-symmetric structure.
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