Abstract

A high-power diode-cladding-pumped Ho3+, Pr3+-doped fluoride glass fiber laser is demonstrated. The laser produced a maximum output power of 2.5W at a slope efficiency of 32% using diode lasers emitting at 1150nm. The long-emission wavelength of 2.94μm measured at maximum pump power, which is particularly suited to medical applications, indicates that tailoring of the proportion of Pr3+ ions can provide specific emission wavelengths while providing sufficient de-excitation of the lower laser level.

© 2009 Optical Society of America

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