Title :
Frequency spectral analyzer using photo-EMF effect
Author :
García-Lara, C.M. ; Hernandez-Hernandez, E. ; Mansurova, S. ; Ramos-García, R.
Author_Institution :
Instituto Nacional de Astrofisica, Opt. y Electron., Puebla, Mexico
Abstract :
In this paper, we have shown that by using beating of two photo-emf signals generated by two incoherent patterns, each at oscillating at different frequencies and not at the same spatial frequency and phase modulation amplitude, can be used to determine the frequency components of a vibrating object.
Keywords :
frequency measurement; light coherence; optical modulation; optical testing; phase modulation; photoconductivity; photovoltaic effects; spectral analysers; vibrations; frequency components determination; frequency spectral analyzer; incoherent patterns; phase modulation amplitude; photo-EMF effect; spatial frequency; vibrating object; Chirp modulation; Frequency; Interference; Mirrors; Object detection; Optical modulation; Phase modulation; Pulse modulation; Signal generators; Spectral analysis;
Conference_Titel :
Lasers and Electro-Optics Europe, 2003. CLEO/Europe. 2003 Conference on
Print_ISBN :
0-7803-7734-6
DOI :
10.1109/CLEOE.2003.1312362
