1.6 1.6 -band optical amplification system

摘要

More particularly, the present invention relates to an optical amplification system capable of amplifying an optical signal in a 1.6 탆 band. More specifically, a near-infrared fluorescence in a 1.6 탆 band generated from an amorphous material to which ⁺ 3-praseodymium (Pr ³⁺ ) Or as an optical fiber type optical amplifier. The optical amplification system of the present invention is characterized in that a host material glass having a representative phonon energy having a substantial influence on multiphonon relaxation of rare earth ions is substantially 320 cm ^-1 or less and a praseodymium ion added to the glass And / or erbium ions, and excitation means for optically pumping the ion-doped glass to induce fluorescence transition in the 1.6 mu m band.