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Signal-to-noise ratio calculation in a moving-optical-wedge spectrometer
Tarek A Al-Saeed1, Diaa A Khalil
1Biomedical Engineering Department, Faculty of Engineering, Helwan University, Helwan, Egypt. tarek1971@ieee.org
Applied Optics
|October 24, 2012
Abstract:
In this paper we study the signal-to-noise ratio degradation in a moving-optical-wedge interferometer when used as an optical spectrometer. Both the mechanical vibration and temperature fluctuation effects are studied, and the effects are compared to their counterparts in a conventional Michelson interferometer. While the wedge interferometer is found to be more immune to linear translational vibration, it shows much higher sensitivity to rotational vibration.

