Optical Spectra Tuning of All-Glass Photonic Bandgap Fiber Infiltrated with Silver Fast-Ion-Conducting Glasses

Materials (Basel). 2014 Aug 7;7(8):5735-5745. doi: 10.3390/ma7085735.

Abstract

Silver iodide metaphosphate glasses of the xAgI + (1-x)AgPO₃ 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 AgPO₃ 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)AgPO₃/PCFs is also considered.

Keywords: clusters; fast ion conducting; microstructured fiber design; photonic bandgap guidance; photonic crystal fiber; silver phosphate glass.