title: Birefringence variation with temperature in elliptically cladded single-mode fibers.
abstract: A nondestructive method for measuring a beat length of stress-induced birefringent fibers is described. Using the method at 1.3-microm wavelength, the relation of the beat length in elliptically cladded fibers vs temperature is investigated. The experimental results indicate that the beat length increases almost linearly with temperature in the vicinity of room temperature. Using the measurement results, we obtain temperature at which no stress-induced birefringence occurs. Furthermore, it is indicated that the phase retardation in the stress-induced birefringent fibers changes linearly with temperature.
authors.forename: K
authors.initials: K
authors.lastname: Mochizuki
authors.forename: Y
authors.initials: Y
authors.lastname: Namihira
authors.forename: Y
authors.initials: Y
authors.lastname: Ejiri