1 December 1999 Techniques to eliminate error induced due to acousto-optic modulator vibration in heterodyne interferometry
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Optical Engineering, 38(12), (1999). doi:10.1117/1.602310
Abstract
Noise reduction and improved resolution are some serious challenges for precision measurement in the era of nanotechnology. Although several factors that lead to the loss of accuracy in precision measurement system were realized and some were eventually eliminated, some critical factors that were overlooked remain. One such factor, which has become an inherent part of the system, is that caused by the vibration of the acousto optic modulator (AOM) in heterodyne interferometry. We highlight the effect of error induced by the vibration of the AOM and, different methods of eliminating this error by the modification of the optical layout discussed.
Bryan Kok Ann Ngoi, Krishnan Venkatakrishnan, "Techniques to eliminate error induced due to acousto-optic modulator vibration in heterodyne interferometry," Optical Engineering 38(12), (1 December 1999). http://dx.doi.org/10.1117/1.602310
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KEYWORDS
Bragg cells

Heterodyning

Interferometry

Signal generators

Acoustics

Error analysis

Temperature metrology

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