INVESTIGADORES
PEREZ QUINTIAN Luis fernando
artículos
Título:
Optical encoder based on a nondiffractive beam II
Autor/es:
LUTENBERG, ARIEL; PEREZ QUINTIAN, FERNANDO
Revista:
APPLIED OPTICS
Editorial:
OPTICAL SOC AMER
Referencias:
Año: 2009 vol. 48 p. 414 - 424
ISSN:
0003-6935
Resumen:
In a previous work, we introduced the design of an optical encoder based on a nondiffractive beam and
demonstrated that it generates a suitable output sinusoidal signal [Appl. Opt. 47, 22012206 (2008)]. In
this work, we experimentally, analytically, and numerically study the dependence of the system performance
on its parameters (grating pitch, photodetector size, etc.) and propose three different optimization
criteria for which the tolerance to variations in the system parameters is also analyzed.We conclude that
the proposed design generates a suitable output signal, with high contrast and very low harmonic distortion,
while having a remarkable tolerance to variations in its parameters and to mechanical perturbations.