Vortex Polymer Optical Fiber with 64 Stable OAM States

Autor(es)

Borda-Hernandez, Jose A. ^{[1, 2]} ; Serpa-Imbett, Claudia M. ^[2] ; Hernandez Figueroa, Hugo E. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Estadual Campinas, Sch Elect & Comp Engn, Dept Commun, BR-13083852 Campinas, SP - Brazil

^[2] Univ Pontificia Bolivariana Sede Monteria, Dept Elect Engn, ITEM Res Grp, Km 6 Via Cerete, Monteria 230002, Cordoba - Colombia

• Tipo de documento: Artigo Científico
• Fonte: POLYMERS; v. 12, n. 12 DEC 2020.
• Citações Web of Science: 0

Resumo

This research introduces a numerical design of an air-core vortex polymer optical fiber in cyclic transparent optical polymer (CYTOP) that propagates 32 orbital angular momentum (OAM) modes, i.e., it may support up to 64 stable OAM-states considering left- and right-handed circular polarizations. This fiber seeks to be an alternative to increase the capacity of short-range optical communication systems multiplexed by modes, in agreement with the high demand of low-cost, insensitive-to-bending and easy-to-handle fibers similar to others optical fibers fabricated in polymers. This novel fiber possesses unique characteristics: a diameter of 50 mu m that would allow a high mechanical compatibility with commercially available polymer optical fibers, a difference of effective index between neighbor OAM modes of around 10(-4) over a bandwidth from 1 to 1.6 mu m, propagation losses of approximately 15 x 10(-3) dB/m for all OAM modes, and a very low dispersion for OAM higher order modes (+/- l = 16) of up to +2.5 ps/km-nm compared with OAM lower order modes at a telecom wavelength of 1.3 mu m, in which the CYTOP exhibits a minimal attenuation. The spectra of mutual coupling coefficients between modes are computed considering small bends of up to 3 cm of radius and slight ellipticity in the ring of up to 5%. Results show lower-charge weights for higher order OAM modes. (AU)

• Processo FAPESP: 15/24517-8 - Fotônica para internet de nova geração
• Beneficiário: Hugo Enrique Hernández Figueroa
• Modalidade de apoio: Auxílio à Pesquisa - Temático