期刊
IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS
卷 10, 期 2, 页码 300-311出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JSTQE.2004.826570
关键词
optical fiber materials; optical fiber measurements; optical fiber mechanical factors; optical fibers; stress
Frozen-in stresses and strains can significantly impact both the optical and mechanical performance of optical fibers, enabling unique functionalities or leading to serious impairments. Frozen-in strains can be grouped into two general categories: those directly inducing strong birefringence, which are associated with residual elastic stresses; and those inducing a substantially isotropic index perturbation, which can be described as inelastic frozen-in strains. Both types of frozen-in strains can be simultaneously present in the same optical fiber. Frozen-in viscoelasticity was only recently found to be an important draw-induced inelastic strain that can significantly perturb the refractive index profile and hence the waveguiding properties of optical fibers. The optical and mechanical effects of both types of frozen-in stresses and strains are reviewed. Both practical applications as well as impairments are discussed.
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