Abstract
Efficient emission at wavelength from holmium -doped low-phonon-energy gallate bismuth lead (GBL) oxide glasses, owing to the : transition, was observed, and the stimulated emission cross section was calculated to be . Population inversions between the and levels have been achieved, and a broad gain bandwidth from was obtained. The large product of emission cross section and measured lifetime also support this characteristic. The results indicate that a -doped GBL glass system is a promising candidate for the development of E-band fiber-optic amplifiers.
© 2010 Optical Society of America
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