The hypothesis of the moving comb in frequency shifted feedback lasers

  • Guillet De Chatellus H
  • Lacot E
  • Glastre W
 et al. 
  • 5


    Mendeley users who have this article in their library.
  • 13


    Citations of this article.


The use of frequency-shifted feedback (FSF) lasers in optical metrology is based on a unique coherence property: the appearance of beats in the noise spectrum at the output of a two-beam interferometer, whose frequencies vary linearly with the path delay of the interferometer. A description of the output of a FSF laser as a moving comb of optical frequencies is generally admitted to explain these specific coherence properties. Here starting from the model of a passive FSF cavity seeded by spontaneous emission we give a rigorous description of the time-spectrum properties of FSF lasers and show that the moving comb exists only in the limit of small frequency shift. © 2011 Elsevier B.V. All rights reserved.

Author-supplied keywords

  • Frequency shifted feedback laser
  • Gauss sums
  • Laser coherence
  • Talbot effect
  • Time-frequency spectrum

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document


  • H. Guillet De Chatellus

  • E. Lacot

  • W. Glastre

  • O. Jacquin

  • O. Hugon

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free