Enhanced thermal stability of oleic-acid-capped PbS quantum dot optical fiber amplifier | Zendy

Xiaolan Sun | Zendy; Rong Dai | Zendy; Juanjuan Chen | Zendy; Wei Zhou | Zendy; Tingyun Wang | Zendy; Alan Kost | Zendy; ChiaKuang Tsung | Zendy; Zesheng An | Zendy

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Enhanced thermal stability of oleic-acid-capped PbS quantum dot optical fiber amplifier

Author(s) -

Xiaolan Sun,

Rong Dai,

Juanjuan Chen,

Wei Zhou,

Tingyun Wang,

Alan Kost,

ChiaKuang Tsung,

Zesheng An

Publication year - 2014

Publication title -

optics express

Language(s) - Uncategorized

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.22.000519

Subject(s) - materials science , quantum dot , oleylamine , fiber amplifier , oleic acid , thermal stability , optical amplifier , optoelectronics , fiber , amplifier , optical fiber , optics , laser , nanotechnology , chemistry , composite material , nanoparticle , physics , biochemistry , organic chemistry , cmos

Poor thermal stability has remained a severe obstacle for practical applications of optical fiber amplifiers based on quantum dots (QDs). We demonstrate that thermal stability at elevated temperatures can be achieved by using oleic-acid-capped QDs. Optical fiber amplifiers using oleic-acid-capped QDs for the gain medium exhibited stable gain of more than 5 dB at 1550 nm between 25 °C and 50 °C that did not degrade upon cooling. In contrast, fiber amplifiers employing oleylamine-capped QDs exhibited reduced gain when heated and subsequently cooled.

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