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
Jianjun Chen, Yong Zhu, Bo Liu, Wei Wei, Ning Wang, and Jie Zhang, "Experimental study of Fourier transform spectrometer based on MEMS micro-mirror," Chin. Opt. Lett. 11, 053003- (2013)