Femtosecond writing of refractive index structures in multimode and multicore optical fibres
01 Pubblicazione su rivista
Wolf A A, Dostovalov A V, Wabnitz S, Babin S A
DOI: 10.1070/QEL16852
ISSN: 1063-7818
The possibility of writing fibre Bragg gratings (FBGs) in optical fibres with a complex spatial structure using femtosecond IR laser pulses is considered. In particular, selective writing of uniform FBGs in individual cores of a seven-core fibre and writing of serial and parallel FBG arrays in the core of a multimode fibre with a gradient refractive index profile are demonstrated.