Journal
JOURNAL OF NON-CRYSTALLINE SOLIDS
Volume 383, Issue -, Pages 192-195Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jnoncrysol.2013.04.010
Keywords
Tunable photoluminescence; Optical glass; PbS quantum dots; Multi-wavelength; Optical amplification
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Optical properties of PbS quantum dot (QD)-embedded silicate glasses prepared through post annealing were investigated. By modulating the heat treatment condition, tunable near-infrared (NIR) photoluminescence (PL) was obtained. Noticeable optical amplification was achieved at both 1330 nm and 1550 nm windows with similar amplification characteristics in single PbS QD-embedded glass, which indicated that broadband optical amplification is expected at the entire PL band of PbS QD-embedded glass. The PbS QD-embedded glass with multi-wavelength optical amplification is promising as the gain medium of broadband fiber amplifiers and tunable fiber lasers. (C) 2013 Elsevier B.V. All rights reserved.
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