The XC correlators series offer contains spectrographs, autocorrelators and cross-correlators, the XC cross-correlators can measure the coherence degree from the 2nd order until high order correlations, most of the products of the series can reach up to all the lines correlated into a single coherence value, making them nth-order cross-correlators
libahp-xc SDK offers a set of functions to applications that integrate the XC correlators to their application .
The SDK contains functions to connect to the XC correlators and an abstract interface to drive and measure the coherence status, continuum scans and average spectral measures.