Optical spectra tuning of all-glass photonic bandgap fiber infiltrated with silver fast-ion-conducting glasses

Abstract

Silver iodide metaphosphate glasses of the xAgI + (1-x)AgPO 3 family are embedded inside the air capillaries of a commercial silica photonic crystal fiber (PCF) by means of vacuum-assisted infiltration technique. In this paper, we report on tuning the photonic bandgap (PBG) guidance characteristics of the fabricated all-glass photonic bandgap fibers, by varying the composition of the fast-ion-conducting phosphate glass infiltration medium. Doping AgPO 3 metaphosphate glass with AgI significantly alters the PBG guidance patterns in the examined range between 350 and 1750 nm, as it leads to the introduction of numerous additional transmission stop-bands, while affecting scattering dependant losses. The effect of phosphate glass cooling method during sample fabrication on the transmission behavior of the xAgI + (1-x)AgPO 3 /PCFs is also considered. © 2014 by the authors.