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Optics Letters

Optics Letters


  • Vol. 36, Iss. 19 — Oct. 1, 2011
  • pp: 3921–3923

Absolute frequency spectroscopy of CO 2 lines at around 2.09 μm by combined use of an Er:fiber comb and a Ho:YLF amplifier

D. Gatti, N. Coluccelli, A. Gambetta, A. Di Lieto, M. Tonelli, G. Galzerano, P. Laporta, and M. Marangoni  »View Author Affiliations

Optics Letters, Vol. 36, Issue 19, pp. 3921-3923 (2011)

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The low-frequency tail of an octave-spanning supercontinuum (SC) generated by an Er:fiber comb is enhanced by a multipass Ho:YLF amplifier and used in a sum-frequency-generation scheme to obtain absolute referencing of a single-mode Tm-Ho:YAG laser tunable around 2.09 μm . By tuning the comb repetition frequency, the probing laser is scanned across the absorption lines of a CO 2 gas sample and highly accurate absorption profiles are measured. This approach can be readily scaled to any wavelength above 2 μm .

© 2011 Optical Society of America

OCIS Codes
(140.3280) Lasers and laser optics : Laser amplifiers
(140.3500) Lasers and laser optics : Lasers, erbium
(190.0190) Nonlinear optics : Nonlinear optics
(300.6340) Spectroscopy : Spectroscopy, infrared

ToC Category:
Lasers and Laser Optics

Original Manuscript: August 4, 2011
Revised Manuscript: September 9, 2011
Manuscript Accepted: September 9, 2011
Published: September 30, 2011

D. Gatti, N. Coluccelli, A. Gambetta, A. Di Lieto, M. Tonelli, G. Galzerano, P. Laporta, and M. Marangoni, "Absolute frequency spectroscopy of CO2 lines at around 2.09 μm by combined use of an Er:fiber comb and a Ho:YLF amplifier," Opt. Lett. 36, 3921-3923 (2011)

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