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Proceedings Paper

Ultra-broadband amplification through nanotechnology
Author(s): Jeffrey R. DiMaio; Baris Kokuoz; John Ballato
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Paper Abstract

As demands for bandwidth continue to increase, telecommunication networks would greatly benefit from the development of broader-band amplifiers. The currently erbium doped fiber amplifiers are limited to amplification of approximately 100 nm bandwidth window. One method to increase the bandwidth of the fiber amplifier would be to incorporate multiple rare earths (REs) into a single fiber which exhibit emissions from ~1000-1800 nm. Unfortunately, energy transfer between rare earth ions typically results in quenching all but selected emissions negating this approach to potential ultra-broadband amplification. It would be ideal if one could take the individual spectra of an ion and place that ion into a host with no regard to other lanthanides that also are present in the host. This problem can be solved by using a composite material that utilizes nanoparticles to constrain different REs to individual particles thereby controlling or preventing energy transfer. In order to control energy transfer, RE doped LaF3 nanocrystals were grown in an aqueous solution using a core/shell technique to constrain different rare earth into separate particles or shells within a single particle. Using these techniques, we show that energy transfer can be controlled.

Paper Details

Date Published: 2 October 2006
PDF: 10 pages
Proc. SPIE 6389, Active and Passive Optical Components for Communications VI, 638908 (2 October 2006); doi: 10.1117/12.690687
Show Author Affiliations
Jeffrey R. DiMaio, Clemson Univ. (United States)
Baris Kokuoz, Clemson Univ. (United States)
John Ballato, Clemson Univ. (United States)

Published in SPIE Proceedings Vol. 6389:
Active and Passive Optical Components for Communications VI
Achyut K. Dutta; Yasutake Ohishi; Niloy K. Dutta; Jesper Moerk, Editor(s)

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