Photonic entanglement has a wide range of applications in quantum computationand communication. Here we introduce a new device: the "photonic module", whichallows for the rapid, deterministic preparation of a large class of entangledphoton states. The module is an application independent, "plug and play"device, with sufficient flexibility to prepare entanglement for all majorquantum computation and communication applications in a completelydeterministic fashion without number-discriminated photon detection. We presenttwo alternative constructions for the module, one using free-space componentsand one in a photonic bandgap structures. The natural operation of the moduleis to generate states within the stabilizer formalism and we present ananalysis on the cavity-QED requirements to experimentally realize this device.
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