We demonstrate that a single all-optical sensor based on laser diode self-mixing interferometry can monitor the independent displacement of individual portions of a surface. The experimental evidence was achieved using a metallic sample in a translatory motion while partly ablated by a ps-pulsed fiber laser. A model based on the Lang-Kobayashi approach gives an excellent explanation of the experimental results.
|Titolo:||Simultaneous measurement of multiple target displacements by self-mixing interferometry in a single laser diode|
|Data di pubblicazione:||2011|
|Digital Object Identifier (DOI):||10.1364/OE.19.016160|
|Appare nelle tipologie:||1.1 Articolo in rivista|