Abstract:

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 (Δ T>150℃) 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.

Key words: broadband ASE, erbium-doped tellurite fiber (EDTF), single-mode