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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 37, Iss. 22 — Nov. 15, 2012
  • pp: 4735–4737

High-gain wavelength-selective amplification and cavity ring down spectroscopy in a fluoride glass erbium-doped microsphere

A. Rasoloniaina, S. Trebaol, V. Huet, E. Le Cren, G. Nunzi Conti, H. Serier-Brault, M. Mortier, Y. Dumeige, and P. Féron  »View Author Affiliations


Optics Letters, Vol. 37, Issue 22, pp. 4735-4737 (2012)
http://dx.doi.org/10.1364/OL.37.004735


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Abstract

We experimentally demonstrate a compact optical amplifier consisting of a rare-earth-doped whispering-gallery-mode microsphere coupled via a tapered fiber. A gain up to 20 dB is reported in an erbium-doped fluoride glass microsphere 135 μm in diameter. Below the amplification regime, the optical gain is used to compensate for unavoidable losses due to surface contamination or scattering. Quality factor as high as 2 × 10 9 has been measured by analyzing the transient response of the microsphere excited by a dynamically shifted frequency input signal.

© 2012 Optical Society of America

OCIS Codes
(140.4480) Lasers and laser optics : Optical amplifiers
(300.3700) Spectroscopy : Linewidth
(300.6310) Spectroscopy : Spectroscopy, heterodyne
(140.3945) Lasers and laser optics : Microcavities

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: September 14, 2012
Revised Manuscript: October 5, 2012
Manuscript Accepted: October 5, 2012
Published: November 14, 2012

Citation
A. Rasoloniaina, S. Trebaol, V. Huet, E. Le Cren, G. Nunzi Conti, H. Serier-Brault, M. Mortier, Y. Dumeige, and P. Féron, "High-gain wavelength-selective amplification and cavity ring down spectroscopy in a fluoride glass erbium-doped microsphere," Opt. Lett. 37, 4735-4737 (2012)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-37-22-4735


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