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  4. Frequency noise of free-running 4.6 um distributed feedback quantum cascade lasers near room temperature
 
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Frequency noise of free-running 4.6 um distributed feedback quantum cascade lasers near room temperature

Auteur(s)
Tombez, Lionel 
Institut de physique 
Di Francesco, Joab 
Institut de physique 
Schilt, Stephane 
Institut de physique 
Di Domenico, Gianni 
Institut de physique 
Faist, J.
Thomann, Pierre 
Institut de physique 
Hofstetter, Daniel 
Institut de physique 
Date de parution
2011-8-10
In
Optics Letters
Vol.
16
No
36
De la page
3109
A la page
3111
Mots-clés
  • Fluctuations
  • relaxations
  • and noise
  • Linewidth
  • Semiconductor lasers
  • quantum cascade
  • Fluctuations

  • relaxations

  • and noise

  • Linewidth

  • Semiconductor lasers

  • quantum cascade

Résumé
The frequency noise properties of commercial distributed feedback quantum cascade lasers emitting in the 4.6 um range and operated in cw mode near room temperature (277K) are presented. The measured frequency noise power spectral density reveals a flicker noise dropping down to the very low level of <100 Hz2/Hz at 10 MHz Fourier frequency and is globally a factor of 100 lower than data recently reported for a similar laser operated at cryogenic temperature. This makes our laser a good candidate for the realization of a mid-IR ultranarrow linewidth reference.
Lié au projet
Fundamental metrology with laser-cooled atoms and optical frequency combs 
Identifiants
https://libra.unine.ch/handle/123456789/8754
Autre version
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-36-16-3109
Type de publication
journal article
Dossier(s) à télécharger
 main article: 2014-04-28_850_7466.pdf (408.54 KB)
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