  Using coherent states in optical quantum process tomography is a
practically-relevant approach. Here, we develop a framework for complete
characterization of quantum-optical processes in terms of normally-ordered
moments by using coherent states as probes. We derive the associated
superoperator tensors for several optical processes. We also show that our
technique can be used to determine nonclassicality features of quantum-optical
states and processes. Furthermore, we investigate identification of multi-mode
Gaussian processes and show that the number of necessary probe coherent states
scales linearly with the number of modes.
