Lateral and Hydraulic Pressure Characteristics of Submarine Optical Fiber Cable

On designing optical fiber cables, it is necessary to deal with the weakness of optical fibers, such as a small breaking elongation compared with metals and excess optical loss under both lateral and hydraulic pressure. This paper presents a structural design method for submarine optical fiber cables, based on the study of both lateral and hydraulic pressure characteristics. This paper also clarifies that a composite tension member increases the lateral and hydraulic pressure strength of the cable and can protect optical fibers from extremely large force during laying and recovery.