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  • CLEO/Europe and EQEC 2009 Conference Digest
  • (Optica Publishing Group, 2009),
  • paper EG1_4

An ultra-stable, widely tunable and Cs-traceable mid-IR coherent source

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Abstract

Most of the fundamental (and strongest) ro-vibrational transitions of molecular species of atmospheric interest lie in the mid-IR region of the spectrum. With this motivation, in our laboratory we have been applying a difference-frequency-generated (DFG) coherent source, emitting in this spectral region, to high-precision and high- sensitivity molecular spectroscopy [1,2], The availability of optical frequency combs (OFCs) in the visible/near-IR region combined with frequency mixing processes in nonlinear crystals makes it possible to reference such mid-IR radiation to the Cs primary frequency standard, thus extending the present metrological potential of OFCs to even longer wavelengths.

© 2009 IEEE

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