  We theoretically implement some hyperparallel optical elements, including
quantum single photon transistor, router, and dynamic random access memory
(DRAM). The inevitable side leakage and the imperfect birefringence of the
quantum dot (QD)-cavity mediates are taken into account, and unity fidelities
of our optical elements can be achieved. The hyperparallel constructions are
based on polarization and spatial degrees of freedom (DOFs) of the photon to
increase the parallel efficiency, improve the capacity of channel, save the
quantum resources, reduce the operation time, and decrease the environment
noises. Moreover, the practical schemes are robust against the side leakage and
the coupling strength limitation in the microcavities.
