In this paper, we present an all-optical version of the OPALS, called
P-OPALS, as an instance of a pure optical computing system to clarify
its potential capabilities. Before discussing the P-OPALS, basic conce
pts of OAL and the OPALS are explained. On the P-OPALS, utilized techn
iques and an experimental system are presented along with experimental
results. Finally, processing capability of the P-OPALS is estimated i
n terms of data number and processing capacity.