Send to

Choose Destination
See comment in PubMed Commons below
Appl Opt. 2009 Jan 1;48(1):64-8.

Self-aligned setup for laser optical feedback imaging insensitive to parasitic optical feedback.

Author information

  • 1Laboratoire de Spectrométrie Physique, Université Joseph Fourier de Grenoble, UMR CNRS 5588, B.P. 87, 38402 Saint martin d'Hères Cedex, France.


We propose a new optical architecture for the laser optical feedback imaging (LOFI) technique which makes it possible to avoid the adverse effect of the optical parasitic backscattering introduced by all the optical interfaces located between the laser source and the studied object. This proposed setup needs no specific or complex alignment, which is why we can consider the proposed setup to be self-aligned. We describe the principle used to avoid the parasitic backscattering contributions that dramatically deteriorate amplitude and phase information contained in the LOFI images. Finally, we give a successful demonstration of amplitude and phase images obtained with this self-aligned setup in the presence of a parasitic reflection.

PubMed Commons home

PubMed Commons

How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Optical Society of America
    Loading ...
    Write to the Help Desk