Infrared broadband source from 1000nm to 1700nm, based on an Erbium, Neodymium and Bismuth doped double-clad fiber

Pilz, S.; Institute Of Applied Physics, University Of Bern, Sidlerstrasse 5, CH-3012 Bern, Switzerland, Barbosa, C.; 2Instituto De Estudos Avancados (IEAv), Sao Jose Dos Campos, Rod. Dos Tamoios, SP Sao Paulo, Brazil, Etissa, D.; Institute Of Applied Physics, University Of Bern, Sidlerstrasse 5, CH-3012 Bern, Switzerland & Romano, V.; Bern University Of Applied Sciences, ALPS, Pestalozzistrasse 20, CH-3400 Burgdorf, Switzerland
A Nd3+, Er3+ and Bi3+ doped double-clad fiber (core diameter of 25.5μm, cladding diameter of 125μm) with a broad infrared emission has been fabricated based on technique of dry granulated oxides and investigated. Upon the excitation with a 800nm cw pump source all of the three dopant materials showed fluorescence in the infrared region of interest (1000-1700nm). The observed emitted fluorescence power was measured to be 659μW. Changing the pump wavelength to 976nm led to...