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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Anthony J. Campillo
  • Vol. 31, Iss. 21 — Nov. 1, 2006
  • pp: 3179–3181

Continuous-wave frequency comb Fourier transform source based on a high-dispersion cavity

Thilo Kraetschmer, Joachim W. Walewski, and Scott T. Sanders  »View Author Affiliations


Optics Letters, Vol. 31, Issue 21, pp. 3179-3181 (2006)
http://dx.doi.org/10.1364/OL.31.003179


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Abstract

A dispersive grating compressor was included in a fiber ring laser to generate an unequally spaced frequency comb spanning 1549 1552 nm . Beating of nearby modes in the comb naturally assigns unique amplitude modulation frequencies to each spectral component emitted. The source contains no moving parts. The single-mode fiber-coupled output is directed through hydrogen cyanide gas and detected by a photodiode. A Fourier transform of a 1 ms record yields a spectrum that agrees with results from a grating spectrometer at 0.06 nm resolution. By engineering stable, broadband combs, the technique could result in a universal and simple approach for spectroscopy at almost arbitrary measurement speeds and spectral resolutions limited only by Fourier principles.

© 2006 Optical Society of America

OCIS Codes
(140.3560) Lasers and laser optics : Lasers, ring
(300.1030) Spectroscopy : Absorption
(300.6260) Spectroscopy : Spectroscopy, diode lasers
(300.6300) Spectroscopy : Spectroscopy, Fourier transforms

ToC Category:
Spectroscopy

History
Original Manuscript: May 31, 2006
Revised Manuscript: August 3, 2006
Manuscript Accepted: August 3, 2006
Published: October 11, 2006

Citation
Thilo Kraetschmer, Joachim W. Walewski, and Scott T. Sanders, "Continuous-wave frequency comb Fourier transform source based on a high-dispersion cavity," Opt. Lett. 31, 3179-3181 (2006)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-31-21-3179

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