Abstract
We propose a new Fourier transform spectrometer based on programmable
microelectromechanical systems (MEMS) micro-mirror and an improved Michelson interferometer. The
principle of the spectrometer is theoretically analyzed. A signal acquisition unit and an
experimental set-up are designed. The spectrum of the polychromatic light source is obtained at a
slantwise reflector angle of 0.238°. The spectrum is analyzed by this system within the near
infrared. The experimental results show that the spectral accuracy is less than 3 nm, and the
signal-to-noise ratio (SNR) is 18 dB. The spectral resolution is less than 16 nm.
© 2013 Chinese Optics Letters
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