Real-time distance measurement immune from atmospheric parameters using optical frequency combs - Archive ouverte HAL Accéder directement au contenu
Pré-Publication, Document De Travail Année : 2012

Real-time distance measurement immune from atmospheric parameters using optical frequency combs

Résumé

We propose a direct and real-time ranging scheme using an optical frequency combs, able to compensate optically for index of refraction variations due to atmospheric parameters. This scheme could be useful for applications requiring stringent precision over a long distance in air, a situation where dispersion becomes the main limitation. The key ingredient is the use of a mode-locked laser as a precise source for multi-wavelength interferometry in a homodyne detection scheme. By shaping temporally the local oscillator, one can directly access the desired parameter (distance) while being insensitive to fluctuations induced by parameters of the environment such as pressure, temperature, humidity and CO$_2$ content.
Fichier principal
Vignette du fichier
Dispersion-OE.pdf (230.5 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-00719209 , version 1 (19-07-2012)

Identifiants

Citer

Pu Jian, Olivier Pinel, Claude Fabre, Brahim Lamine, Nicolas Treps. Real-time distance measurement immune from atmospheric parameters using optical frequency combs. 2012. ⟨hal-00719209⟩
134 Consultations
147 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More