Title :
“Lens-free” self-mixing sensor for velocity and vibrations measurements
Author :
Perchoux, Julien ; Campagnolo, Lucie ; Lim, Yah Leng ; Rakic, Aleksandar D.
Author_Institution :
INPT, Univ. de Toulouse, Toulouse, France
Abstract :
We present an ultra-compact sensor based on optical feedback in a Vertical-Cavity Surface-Emitting Laser (VCSEL) that does not require any optical element. The setup proposed measures displacement and velocity with an operating range of several centimeters.
Keywords :
optical feedback; optical sensors; surface emitting lasers; velocity measurement; vibration measurement; VCSEL; lens-free self-mixing sensor; optical element; optical feedback; ultracompact sensor; velocity measurements; vertical-cavity surface-emitting laser; vibration measurements; Diode lasers; Measurement by laser beam; Optical feedback; Optical sensors; Signal to noise ratio; Vertical cavity surface emitting lasers;
Conference_Titel :
Optoelectronic and Microelectronic Materials and Devices (COMMAD), 2010 Conference on
Conference_Location :
Canberra, ACT
Print_ISBN :
978-1-4244-7334-2
Electronic_ISBN :
1097-2137
DOI :
10.1109/COMMAD.2010.5699770
