Abstract
Yb3+-doped germanosilicate fiber has been demonstrated to be a versatile host for laser action at wavelengths from 1 to 1.2 μm.1 It offers many very attractive features including broad absorption (800-1064 nm) and emission (970-1200 nm) bands. The pump band includes AlGaAs and InGaAs diode wavelengths as well as Nd:YLF and Nd:YAG wavelengths where very high powers are available. The emission band includes wavelengths of interest for specific applications, e.g., a 1020-nm source for pumping of 1.3 pm Pr3+-doped fiber amplifiers and upconversion lasers, a source at 1140 nm for pumping of Tm3+-doped fluoride fiber blue upconversion lasers, and singlefrequency sources for spectroscopic applications.
© 1994 Optical Society of America
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