Schemes　are　proposed　for　producing　maximally　entangled　states　for　two　modes　via　a　single　atoms　resonating　with　an　ultra-high　Q　microtoroidal　cavity.　This　system　would　lead　to　the　generation　of　the　single-photon　entangled　state　or　single-atom　single-photon　entangled　state.　The　maximal　entanglements　are　highly　relative　to　the　distances　between　the　atom　and　the　microtoroidal　cavity　as　well　as　interaction　times.　All　of　these　states　have　high　fidelities.