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.
Simultaneous measurement of multiple target displacements by self-mixing interferometry in a single laser diode / Mezzapesa, Fp; Columbo, L; Brambilla, Massimo; Dabbicco, M; Ancona, A; Sibillano, T; De Lucia, F; Lugara, Pm; Scamarcio, G.. - In: OPTICS EXPRESS. - ISSN 1094-4087. - 19:17(2011), pp. 16160-16173. [10.1364/OE.19.016160]
Simultaneous measurement of multiple target displacements by self-mixing interferometry in a single laser diode
BRAMBILLA, Massimo;
2011-01-01
Abstract
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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
