We describe a new method for imaging in three-dimensional turbid media, laser optical feedback tomography. This technique is based on the resonant sensitivity of a short-cavity laser to frequency-shifted optical feedback from ballistic photons retrodiffused from the medium. The advantage of the method is that the detector is the laser source itself, which provides optical amplification with self-aligned spatial and temporal coherent detection.
© 1999 Optical Society of America
E. Lacot, R. Day, and F. Stoeckel, "Laser optical feedback tomography," Opt. Lett. 24, 744-746 (1999)