We examine several problems related to the mechanical behavior of dual-coated optical fibers: low temperature microbending, evaluation of spring constant due to coating layers, strength of the end portions of fibers clamped in termination fixtures, and prediction of stresses caused by the misalignment of the openings in the frame and the termination fixture. The developed formulas are simple, easy-to-use and clearly indicate the role of the major factors affecting the mechanical behavior of the fibers. The obtained results can be of help in physical design of dual-coated fibers and optical interconnections.
Listening, a significant dimension of the behavior of hearing-impaired children, may be measured directly by recording childrens' responses to obtain audio narrations programmed via a conjugate reinforcement system. Twelve hearing-impaired, school-aged children responded in varying ways to the opportunity to listen. Direct and continuous measurement of listening has relevance for evaluation of remediation methods and for discovery of variables potentially related to listening.
Fast and direct measurement of the linear birefringence profile in standard single-mode optical fibers