Optical fibers are extensively used in modern technology such as sensing, shortdistance
and long-distance telecommunications. This motivated many researchers to present different …

In this paper, we used lens-fibre interference technique, proposed by Ramadan (J Opt A:
Pure and appl Opt 2 (2000) 234) to determine the refractive index of the step-index fibre core …

A theoretical analysis of the fringe pattern produced by a capillary tube interferometer is
presented, which is expected to be two-beam interference, and a computer program to …

In this paper, another approach to measure the refractive indices of liquids is proposed. The
method is based on lens–fibre interference. This uses a capillary tube containing the …

The interferogram of multiple-beam Fizeau fringe technique plays an important role to
investigate the optical properties of fiber because this interferogram provides us with useful …

The mechanism of capillary tube interferometer is expected to be two-beam interference by
ray tracing. A computer program to simulate the interference fringe pattern was established …

A focused laser light sheet was used to illuminate the capillary tube filled with liquid and
fringe patterns can be seen. The fringe patterns can be formed by rays directly passing …

A dynamic method was suggested to determine the variation of both refractive index and
transverse sectional area of regular and/or irregular fibers during the dynamic cold drawing …

The lens–fibre interference (LFI) technique is used for monitoring thickness variations of a
known refractive index transparent sheet. The sheet is inserted in the light path between the …

The refractive index profile and the birefringence of fibers are important parameters in many
fields of applications. The values of the refractive indices of the optical fiber give useful …