Sørensen, Henrik Rokkjær1; Canning, John1; Lægsgaard, Jesper1; Hansen, Kim Per3; Varming, Poul4
1 Department of Photonics Engineering, Technical University of Denmark2 Fibers & Nonlinear Optics, Department of Photonics Engineering, Technical University of Denmark3 Crystal Fibre A/S4 Department of Electromagnetic Systems, Technical University of Denmark
liquid filling of photonic crystal fibres reduces the scattering from air–glass interfaces during Bragg grating writing in many layered photonic crystal fibres. Within experimental uncertainty, the grating index modulation of a grating written in germanium-doped photonic crystal fibre with 10 rings of holes was more than doubled for a fixed fluence.
Optics Communications, 2007, Vol 270, Issue 2, p. 207-210