Conference Proceedings
Non-destructive imaging and characterization of optical fiber Bragg gratings
NM Dragomir, D Garchev, GW Baxter, PM Farrell, A Roberts, M Hrabovsky (ed.), D Senderakova (ed.), P Tomanek (ed.)
PHOTONICS, DEVICES, AND SYSTEMS II | SPIE-INT SOC OPTICAL ENGINEERING | Published : 2003
DOI: 10.1117/12.498355
Abstract
The non-destructive three-dimensional images of the effect of refractive index change within a fiber Bragg grating was recorded by using the differential interference contrast imaging technique. The imaging technique yielded qualitative three-dimensional information of refractive index changes throughout the core of the fiber. The results showed that the refractive index change indicated by the images is highly non-uniform.