Broadband, mid-infrared emission from Pi(3+) doped GeAsGaSe chalcogenide fiber, optically clad

作者：Sojka L; Tang Z; Furniss D; Sakr H; Oladeji A; Beres Pawlik E; Dantanarayana H; Faber E; Seddon A B; Benson T M; Sujecki S^*

来源：Optical Materials, 2014, 36(6): 1076-1082.

DOI：10.1016/j.optmat.2014.01.038

• Mid-infrared fiber lasers
• Chalcogenide glasses

We present a study of mid-infrared photoluminescence in the wavelength range 3.5-5.5 mu m emitted from Pr3+: GeAsGaSe core/GeAsGaSe cladding chalcogenide fiber. The Pr3+ doped fiber optic preform is fabricated using extrusion and is successfully drawn to low optical loss, step-index fiber. Broadband mid-infrared photoluminescence is observed from the fiber, both under 1.55 mu m or 1.94 mu m wavelength excitation. Absorption, and emission, spectra of bulk glass and fiber are presented. Luminescent lifetimes are measured for the fiber and the Judd-Ofelt parameters are calculated. The radiative transition rates calculated from Judd-Ofelt theory are compared with experimental lifetimes. The observed strong broadband emission suggests that this type of fiber is a good candidate for further development to realize both fiber lasers and amplified spontaneous emission fiber sources in the mid-infrared region.

• 出版日期2014-4