Abstract

In this article, we study the nonlinear dynamics of a laser subjected to frequency shifted optical reinjection coming back from a vibrating target. More specifically, we study the nonlinear dynamical coupling between the carrier and the vibration signal. The present work shows how the nonlinear amplification of the vibration spectrum is related to the strength of the carrier and how it must be compensated to obtain accurate (i.e., without bias) vibration measurements. The theoretical predictions, confirmed by numerical simulations, are in good agreement with the experimental data. The main motivation of this study is the understanding of the nonlinear response of a laser optical feedback imaging sensor for quantitative phase measurements of small vibrations in the case of strong optical feedback.

© 2016 Optical Society of America

Ultrasound vibration measurements based on laser optical feedback imaging

Vadim Girardeau, Olivier Jacquin, Olivier Hugon, and Eric Lacot
Appl. Opt. 57(26) 7634-7643 (2018)

Frequency-shifted optical feedback in a pumping laser diode dynamically amplified by a microchip laser

Eric Lacot and Olivier Hugon
Appl. Opt. 43(25) 4915-4921 (2004)

Control of the differential interference contrast in reinjected bimode laser

Eric Lacot, Olivier Jacquin, Olivier Hugon, and Hugues Guillet de Chatellus
Appl. Opt. 54(33) 9763-9771 (2015)

Laser optical feedback imaging controlled by an electronic feedback loop

Pierre Guillemé, Eric Lacot, Olivier Jacquin, Wilfried Glastre, Olivier Hugon, and Hugues Guillet de Chatellus
J. Opt. Soc. Am. A 30(11) 2205-2215 (2013)

Optimization of an autodyne laser interferometer for high-speed confocal imaging

Eric Lacot, Wilfried Glastre, Olivier Jacquin, Olivier Hugon, and Hugues Guillet de Chatellus
J. Opt. Soc. Am. A 30(1) 60-70 (2013)