Fabrication and Characterization of Amplified Spontaneous Emission from Er~(3+)-doped Single-Mode Tellurite Fiber

Fabrication and characterization of a newly erbium-doped single-mode tellurite glass-fiber applicable for 1.5μm amplified spontaneous emission(ASE)source were reported.The glasses exhibit very good thermal stability(ΔT150℃)and matchable thermal expansion coefficient.A very broad erbium amplified spontaneous emission in a range of 1450-1650nm from erbium-doped single-mode tellurite glass-fiber is obtained upon excitation of a 980nm laser diode.Effects of the length of glass- fiber and the pumping power of laser diode on the amplified spontaneous emission are discussed.The result indicates that the tellurite glass-fiber is a promising candidate for designing fiber-ASE source.