Tellurite glass optical fiber doped with PbTe quantum dots

Gilberto Junior Jacob; Luiz Carlos Barbosa; Carlos Lenz Cesar

doi:10.1117/12.587248

4 April 2005 Tellurite glass optical fiber doped with PbTe quantum dots

Gilberto Junior Jacob, Luiz Carlos Barbosa, Carlos Lenz Cesar

Proceedings Volume 5734, Quantum Dots, Nanoparticles, and Nanoclusters II; (2005) https://doi.org/10.1117/12.587248
Event: Integrated Optoelectronic Devices 2005, 2005, San Jose, California, United States

Abstract

We produced a PbTe quantum dot core doped optical fiber with tellurite glasses intended to be used in highly nonlinear ultrafast optical devices capable to operate at the optical communication window at 1300 and 1500 nm wavelength region. Attenuation peaks of the optical fiber depends on the heat treatment time as expected for dots growth and covered the whole mid infrared region near 1500 nm. The optical fiber preform was made with the rod-in-tube method and the fiber was produced with a 4 m high Heatway drawing tower. The optical fiber core can be heavily doped because tellurite glasses solubility for PbTe quantum dots is order of magnitude higher than borosilicate and phosphate glasses, for example. In order to match all the requirements for core-clad optical fibers we studied undoped and doped tellurite glasses optical and thermophysical properties as a function of the glass composition. We also followed the growth kinetics of the quantum dots by High Resolution Transmission Electron Microscopy in the bulk glass matrix and the optical fiber.

Citation Download Citation

Gilberto Junior Jacob, Luiz Carlos Barbosa, and Carlos Lenz Cesar "Tellurite glass optical fiber doped with PbTe quantum dots", Proc. SPIE 5734, Quantum Dots, Nanoparticles, and Nanoclusters II, (4 April 2005); https://doi.org/10.1117/12.587248

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