Abstract

We have improved the resolution of our laser optical feedback imaging (LOFI) setup by using a synthetic aperture (SA) process. We report a two-dimensional (2D) SA LOFI experiment where the unprocessed image (i.e., the classical LOFI image) is obtained point by point, line after line using full 2D galvanometric scanning. The 2D superresolved image is then obtained by successively computing two angular SA operations while a one-dimensional angular synthesis is preceded by a frequency synthesis to obtain a 2D superresolved image conventionally in the synthetic aperture radar (SAR) method and their corresponding laser method called synthetic aperture ladar. The numerical and experimental results are compared.

© 2008 Optical Society of America

Resolution of a synthetic aperture laser optical feedback imaging using a galvanometric scanning

Eric Lacot, Olivier Hugon, and Olivier Jacquin
Appl. Opt. 47(22) 4025-4030 (2008)

Synthetic aperture laser optical feedback imaging using a translational scanning with galvanometric mirrors

Wilfried Glastre, Olivier Jacquin, Olivier Hugon, Hugues Guillet de Chatellus, and Eric Lacot
J. Opt. Soc. Am. A 29(8) 1639-1647 (2012)

Synthetic aperture laser optical feedback imaging using galvanometric scanning

Arnaud Witomski, Eric Lacot, Olivier Hugon, and Olivier Jacquin
Opt. Lett. 31(20) 3031-3033 (2006)

Sensitivity of synthetic aperture laser optical feedback imaging

Wilfried Glastre, Eric Lacot, Olivier Jacquin, Olivier Hugon, and Hugues Guillet de Chatellus
J. Opt. Soc. Am. A 29(4) 476-485 (2012)

Using Doppler shift induced by Galvanometric mirror scanning to reach shot noise limit with laser optical feedback imaging setup

O. Jacquin, E. Lacot, O. Hugon, and H. Guillet de Chatelus
Appl. Opt. 54(8) 1978-1983 (2015)