  We introduce the notion of a supercharge optical array synthesized according
to supersymmetric charge operators. Starting from an arbitrary array,
mathematical supersymmetry transformation can be used systematically to create
a zero-energy physical state below the ground state of the super-partner array.
This zero mode, which is pinned deep in the midgap of the corresponding
supercharge array owing to the square-root spectral relationship between a
supercharge and a super-Hamiltonian array, is shown to be protected because of
the chiral symmetry inherent to a supercharge array. A supercharge array can be
used in practical applications to design a discrete optical system of
waveguides or coupled resonators where the mid-gap zero mode facilitates robust
light dynamics either in spatial or time domain.
