Study of spectroscopy and microstructure in nanocrystalline Cr-doped fibers grown by the drawing-tower technique
Journal
Journal of Electronic Materials
Journal Volume
40
Journal Issue
1
Pages
97-101
Date Issued
2011
Author(s)
Abstract
The spectroscopy and microstructure of Cr-doped fibers (CDFs) fabricated by the drawing-tower technique are investigated. The spontaneous emission spectrum exhibited broadband emission of 1.2 μm to 1.55 μm. High-resolution transmission electron microscope images showed that there were nanocrystalline structures in the core, surrounded by an amorphous matrix of SiO 2; they also revealed that the nanoparticle density was about 3.2 × 10 3 μm -2 near the core/clad interface, and 1.5 × 10 4 μm -2 near the core center. The results indicate preliminary success in fabricating nanocrystalline CDF with low transmission loss and crystal-like active properties. © 2010 TMS.
SDGs
Type
journal article