Improvement of speckle statistics in double-wavelength superheterodyne interferometry
Anno: 1995
Autori: Dandliker R., Geiser M., Giunti C., Zatti S., Margheri G.
Affiliazione autori: Institute of Microtechnology,University of Neuchatel, CH-2000 Neuchatel, Switzerland;
Officine Galileo s.p.a., Via Einstein 35, 50013 Campi Bisenzio Firenze, Italy;
Istituto Nazionale di Ottica, largo e. fermi 6, Firenze, Italy
Abstract: In this paper we analyze the probability density function of the superheterodyne signal obtained in a two-wavelength interferometer from the beat of a local oscillator laser beam with a speckled return beam Theoretical investigation shows that, by using an increased number of spatially one can improve noticeably the detection probability of the superheterodyne Experimental results obtained with a four-quadrant detector are in good agreement with theory.
Giornale/Rivista: APPLIED OPTICS (2004)
Volume: 34 (31) Da Pagina: 7197 A: 7201
Parole chiavi: Heterodyne interferometry; speckle,; speckle statisticsCitazioni: 7dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2024-05-12Riferimenti tratti da Isi Web of Knowledge: (solo abbonati)