We present our latest research development of the all-reflective Fourier transform imaging spectrometer
based on the principle of wavefront-splitting interference. The optical configuration of this system
includes a set of Fresnel's double mirrors and a number of other reflective telescopes or mirrors. The
major advantages of this system includs higher optical throughput, larger spectral bandwidth, and less
chromatic aberration as compared with conventinal
chromatic-despersion imaging spectrometer . In this
paper ,the optical principle and the prototype device of our system are introduced, and the latest
experimental results from our prototype device are presented.
All-Reflected Fourier Transform Imaging Spectrometer (ARFTIS) is a novel type of instrument based on Fourier
transform spectroscopy. ARFTIS will offer high luminous flux and high spectral resolution, well suited to remote sensing
with low energy. But there is nearly not any method of convenient spectrum calibration for this kind of instrument. In
this paper, we analyze the spectrum calibration principle of ARFTIS and the cause of the calibration error. We reached
the result that the calibration error is getting bigger with the increase of spectrum peak wavelength of the calibration light.
By these we develop three convenient spectrum calibration methods used in Visible/Near-Infrared waveband, which are
the Monochromatic Method, the Average Method and the Weighted Average Method respectively. We apply these
methods to ARFTIS calibrate experiment. According to the experiment results, The Monochromatic Method can
calibrate by using only one group of data, but with a little lower calibration precision. However the Weighted Average
Method can provide a higher calibration precision than the other two methods. So, the Monochromatic method and the
Weighted Average Method both have good application value for ARFTIS calibration.