The effect of multiplexing in Fourier transform spectroscopy (FTS) (and other coding techniques such as Hadamard transform spectroscopy) on the signal/noise ratio arises from two factors. The first of these is a <i>N</i><sup>½</sup> improvement for a spectrum containing <i>N</i> resolution elements since each individual resolution element is now viewed for an <i>N</i>-fold longer time. The second factor is due to the simultaneous observation of all resolution elements, raising the signal level by a factor <i>N</i> for an uniform spectrum.

PDF Article

Cited By

OSA participates in CrossRef's Cited-By Linking service. Citing articles from OSA journals and other participating publishers are listed here.

Alert me when this article is cited.