A "dual", feed-forward + feed-back frequency control for efficient and convenient diode laser line narrowing

Abstract : DFB diode lasers have linewidths in the MHz range. Narrowing the linewidth can be obtained by locking the diode to a frequency discriminator (Michelson interferometer,...). But the lock bandwidth has to reach 10 MHz or higher. The current-to-frequency transfer function of DFB lasers is complex: thermal effects at low frequency, carrier physics at high frequency, and a [1MHz-20MHz] transition zone in which the phase and amplitude show variations that prevent from locking in the MHz range. Adding a phase modulator in feed-forward (FF) configuration allows convenient control of the laser frequency, in excess of 15MHz, and convenient+efficient line narrowing with commercial, off the shelf components of the telecom industry.
Type de document :
Poster
ICSO, International Conference on Space Optics, Oct 2016, Biarritz, France. 2016, 〈www.icso2016.com/〉
Liste complète des métadonnées

https://hal.archives-ouvertes.fr/hal-01476870
Contributeur : Michel Lintz <>
Soumis le : dimanche 26 février 2017 - 10:25:24
Dernière modification le : mardi 29 mai 2018 - 12:50:59
Document(s) archivé(s) le : samedi 27 mai 2017 - 12:19:38

Fichier

PosterICSO_Final.pdf
Fichiers produits par l'(les) auteur(s)

Identifiants

  • HAL Id : hal-01476870, version 1

Collections

Citation

Michel Lintz, Duy-Hà Phung, Jean-Pierre Coulon, Benoit Faure, Thomas Leveque. A "dual", feed-forward + feed-back frequency control for efficient and convenient diode laser line narrowing. ICSO, International Conference on Space Optics, Oct 2016, Biarritz, France. 2016, 〈www.icso2016.com/〉. 〈hal-01476870〉

Partager

Métriques

Consultations de la notice

126

Téléchargements de fichiers

45