We report an efficient glass-ceramic fiber laser and show that its slope efficiency (~30%) is not compromised by the presence of Nd-doped fluoride crystals embedded within the core of the single-mode optical fiber. In contrast, the spectroscopy (fluorescence and gain spectrum) of the Nd<sup>3+</sup> ions is dramatically changed by the ceramming process, an indication of strong partitioning of the rare-earth ions into the CdF<sub>2</sub>:PbF<sub>2</sub>:YF<sub>3</sub> crystal environment. The enormous potential for a new range of optical devices based on transparent glass-ceramic materials is highlighted.
© 2001 Optical Society of America
B. N. Samson, P. A. Tick, and N. F. Borrelli, "Efficient neodymium-doped glass-ceramic fiber laser and amplifier," Opt. Lett. 26, 145-147 (2001)