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Proceedings Paper

Semiconductor quantum dots fiber amplifier excited by evanescent wave
Author(s): Lungang Liu; Fufei Pang; Hairun Guo; Zhenyi Chen; Tingyun Wang
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Paper Abstract

Based on semiconductor quantum dots and a tapered optical fiber, an optical fiber amplifier was proposed and studied in this paper. It was fabricated by coating PbS quantum dots doped sol-gel onto the tapered region of optical fiber. The PbS quantum dots were synthesized by colloidal method. The tapered optical fiber was made by using a standard single mode fiber through heating of CO2 laser. With a Wavelength Division Multiplexer (WDM), a signal and a pump can be injected into the fiber tapered region and interacts with the quantum dots through the evanescent field so that the signal can be amplified. The optical gain was characterized and more than 10dB gain was obtained at 1310nm with only 1.6cm interacting length at 130mw pump power.

Paper Details

Date Published: 17 November 2010
PDF: 6 pages
Proc. SPIE 7847, Optoelectronic Devices and Integration III, 78472Z (17 November 2010); doi: 10.1117/12.871727
Show Author Affiliations
Lungang Liu, Shanghai Univ. (China)
Fufei Pang, Shanghai Univ. (China)
Hairun Guo, Shanghai Univ. (China)
Zhenyi Chen, Shanghai Univ. (China)
Tingyun Wang, Shanghai Univ. (China)

Published in SPIE Proceedings Vol. 7847:
Optoelectronic Devices and Integration III
Xuping Zhang; Hai Ming; Alan Xiaolong Wang, Editor(s)

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