HIGH NUMERICAL APERTURE FIBERS: A NEW APPLICATION APPROACH FOR END-TO-END COUPLING WITH PHOTONIC INTEGRATED CIRCUITS
Abstract
The work is devoted to the study of effective matching of fiber-optic elements with photonic integrated circuits (PIC). The optical input/output elements used are flat chopped fibers single mode (SMF-28), fiber microlenses, and fiber optic assemblies consisting of a combination of single-mode fibers and ultra-high numerical aperture (UHNA) fibers. The dependence of the numerical value of optical losses in the “fiber-PIC-fiber” system in the wavelength range 1530-1570 nm when using different optical elements for input/output of optical radiation is considered.

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