The acousto-optical spectrum analizer is a very simple optical processor, that performs real time Fourier transform of an electrical signal. It is substantially based on four components alone: they are a laser source, an acousto-optical cell, a lens and photodiode array. The processing operation of an analyzer is here described, where the acousto-optical cell is based on light - surface acoustic waves interaction and both the cases of guided and unguided light are considered. Results are reported relative to an experimental device that uses side entry internal reflection geometry of interaction and has 50 MHz bandwidth, 300 kHz resolution and 27 dB dynamic range.

Analizzatore di spettro acusto-ottico in tempo reale ad onde acustiche superficiali

E Verona
1980

Abstract

The acousto-optical spectrum analizer is a very simple optical processor, that performs real time Fourier transform of an electrical signal. It is substantially based on four components alone: they are a laser source, an acousto-optical cell, a lens and photodiode array. The processing operation of an analyzer is here described, where the acousto-optical cell is based on light - surface acoustic waves interaction and both the cases of guided and unguided light are considered. Results are reported relative to an experimental device that uses side entry internal reflection geometry of interaction and has 50 MHz bandwidth, 300 kHz resolution and 27 dB dynamic range.
1980
acustoottica
dispositivi SAW
signal processing
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.14243/325321
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? ND
social impact