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Mid-IR frequency measurement using an optical frequency comb and a long-distance remote frequency reference

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 نشر من قبل Anne Amy-Klein
 تاريخ النشر 2012
  مجال البحث فيزياء
والبحث باللغة English
 تأليف Bruno Chanteau




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We have built a frequency chain which enables to measure the absolute frequency of a laser emitting in the 28-31 THz frequency range and stabilized onto a molecular absorption line. The set-up uses an optical frequency comb and an ultrastable 1.55 $mu$m frequency reference signal, transferred from LNE-SYRTE to LPL through an optical link. We are now progressing towards the stabilization of the mid-IR laser via the frequency comb and the extension of this technique to quantum cascade lasers. Such a development is very challenging for ultrahigh resolution molecular spectroscopy and fundamental tests of physics with molecules.



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