Competence Center for Specialty Optical Fibers

In this paper we present new technical developments for the fabrication of low reflective fiber Bragg grating (FBG) chains in “continuous FBG fiber” configuration. Such chains consist of several thousand FBGs and are produced by using draw tower grating (DTG®) technology. The length of a fiber including FBGs can exceed 95% of the total fiber length and is therefore also called “all FBG fiber”. The chains are interrogated with OFDR measurement devices.