The history of the development and current state of hollow-core optical fibers are reviewed. The basic properties which determine the competitive advantages of hollow-core fibers and promising areas for their practical application are discussed. Recent advances in reducing optical losses and the prospects for telecommunication applications of hollow-core fibers, issues of transporting high-intensity optical radiation, and results on nonlinear compression and the generation of ultrashort pulses in gas-filled hollow-core fibers are reviewed. A separate section is devoted to the latest achievements in the development of gas fiber lasers using both optical radiation and gas discharge for pumping.

Keywords: fiber optics, hollow-core optical fibers, nonlinear fiber optics PACS: 42.55.Wd, 42.65.−k, 42.81.−i (all) DOI: 10.3367/UFNe.2023.12.039616 URL: https://ufn.ru/en/articles/2024/2/c/ 001203946800001 2-s2.0-85188862366 2024PhyU...67..129P Citation: Pryamikov A D, Gladyshev A V, Kosolapov A F, Bufetov I A "Hollow-core optical fibers: current state and development prospects" Phys. Usp. 67 129–156 (2024) BibTexBibNote ® (generic)BibNote ® (RIS)MedlineRefWorks Received: 11th, August 2023, revised: 12th, December 2023, accepted: 12th, December 2023 Оригинал: Прямиков А Д, Гладышев А В, Косолапов А Ф, Буфетов И А «Полые световоды: современное состояние и перспективы развития» УФН 194 138–168 (2024); DOI: 10.3367/UFNr.2023.12.039616