Fibre sensors based on transverse mode selection

Asymptotic research in computer optics

“…So we clearly see the limitations of the methods of geometrical optics in calculating the phase function of focusator. The results can also be used in the study of other types of DOEs [37][38][39][40][41][42][43][44][45] and to focus the surface electromagnetic waves [46][47][48].…”

Contribution of Samara Scientists Into Computer Optics Journal Development

“…Moreover, the use of spatial filters, carrying out these transformations, allow the parameters of particles to be directly determined. Investigations in this area are ongoing both with the aim of increasing the sensitivity of fiber-optic sensors [63] and for increasing of transmission capacity and protection of data in optical communication lines [64]. The paper [65] was among the first works in the area of singular optics devoted to the elements forming the beams describing by the Bessel functions.…”

Calculation of a mode set in weakly guiding fibers

“…Use of the diffraction optical elements is the most popular method for devices of generation and selection of vortex modes [8,10,[17][18][19][20][21]. For most popular commercial fibers, the core-cladding index contrast, Δn = n 1 -n 2 , is less than 1%.…”