Effect of friction in ferrules on compression tuning characteristics of fiber Bragg gratings

摘要

The effect of friction in ferrules on compression tuning characteristics of fiber Bragg gratings (FBG) was observed and analyzed in this paper. It was demonstrated that the micro-bending of the fiber in the ferrule would cause friction between fiber and inner wall of the ferrule, and the friction would make a non-uniform strain in the FBG and degradations of its reflection spectrum. To avoid the effect, some measures have been applied including reducing the ferrule diameter to fit the fiber, and filling some lubrication in the ferrule, and so on. Near 10 nm tuning range can be obtained with good spectral performance. (C) 2003 Elsevier Science Ltd. All rights reserved. [References: 10]