Structural design for nonmetallic optical fiber cables made of high-modulus and low linear-expansion coefficient polymer tubes

• Published in: Journal of lightwave technology Vol. 4; no. 8; pp. 1195 - 1203
• Main Authors: Yamamura, T., Shin Sumida, Murata, H.
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01-08-1986; Institute of Electrical and Electronics Engineers
• Subjects: Applied sciences; Design methodology; Exact sciences and technology; Liquid crystal polymers; Nonhomogeneous media; Optical design; Optical fiber cables; Optical fibers; Optical losses; Optical materials; Optical polymers; Other techniques and industries; Steel; Systems, networks and services of telecommunications; Telecommunications; Telecommunications and information theory; Transmission and modulation (techniques and equipments); Optical cable; Subscriber line; Optical telecommunication; Optical fiber
• ISSN: 0733-8724; 1558-2213
• DOI: 10.1109/JLT.1986.1074858

This paper describes a design method for a simple structure nonmetallic optical fiber cable, consisting of stranded loose tubes which are made from a high Young's modulus and low linear-expansion coefficient new polymer. First, the Young's modulus and stranding pitch of the tube unit to effectively bear all laying tension have become obvious from mechanical investigation. The allowable region between the pitch and optical fiber excess length also became obvious. In the allowable region, no additional loss due to tube characteristics was observed in the wide range of \pm 60\deg C. Moreover, it is shown that good performance of the cable using the new polymers is not attained using conventional cable materials.