Denev, D. and Tsankov, T. 2023. ANALYSIS OF THE REQUIREMENTS FOR OPTICAL CABLES FOR CONSTRUCTION OF UNDERWATER TRANSMISSION SYSTEMS: ANALYSIS OF THE REQUIREMENTS FOR OPTICAL CABLES FOR CONSTRUCTION OF UNDERWATER TRANSMISSION SYSTEMS. JOURNAL SCIENTIFIC AND APPLIED RESEARCH. 21, 1 (Mar. 2023), 75–79. DOI:https://doi.org/10.46687/jsar.v21i1.323.