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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry M. Van Driel
  • Vol. 25, Iss. 12 — Dec. 1, 2008
  • pp: 2073–2080

Determination of coupling regime of high-Q resonators and optical gain of highly selective amplifiers

Yannick Dumeige, Stéphane Trebaol, Laura Ghişa, Thi KimNgân Nguyên, Hervé Tavernier, and Patrice Féron  »View Author Affiliations


JOSA B, Vol. 25, Issue 12, pp. 2073-2080 (2008)
http://dx.doi.org/10.1364/JOSAB.25.002073


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Abstract

We present a simple method to determine simultaneously the main characteristics of passive or active high-Q optical resonators. The method is based on cavity ringdown spectroscopy, where the probe wavelength is rapidly swept across the resonance. It has already been shown that this technique allows the loaded cavity lifetime of passive resonators to be obtained. We show that we can also infer the coupling regime for passive resonators and the resonant gain for active resonators. The method is tested on Er 3 + doped fiber resonators and also applied to determine the intrinsic and external Q-factors of an Mg F 2 whispering gallery mode resonator.

© 2008 Optical Society of America

OCIS Codes
(060.2320) Fiber optics and optical communications : Fiber optics amplifiers and oscillators
(120.3940) Instrumentation, measurement, and metrology : Metrology
(230.5750) Optical devices : Resonators
(300.3700) Spectroscopy : Linewidth

ToC Category:
Optical Devices

History
Original Manuscript: June 19, 2008
Revised Manuscript: September 22, 2008
Manuscript Accepted: October 12, 2008
Published: November 24, 2008

Citation
Yannick Dumeige, Stéphane Trebaol, Laura Ghişa, Thi Kim Ngân Nguyên, Hervé Tavernier, and Patrice Féron, "Determination of coupling regime of high-Q resonators and optical gain of highly selective amplifiers," J. Opt. Soc. Am. B 25, 2073-2080 (2008)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-25-12-2073

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