In this talk, we propose an array of optical cavities coupled with a 3-state spin. The ground state |g> and metastable state |m> of the spin are coupled with the excited state |e> with 2 photon absorption and single photon absorption respectively. The initial state is prepared in metastable state for each cavity, and a single photon in one cavity leads to a massive generation of photons across the cavity array. We study the evolving of massive photon generation process numerically and we analytically calculate the Lieb-Robinson bound with a simplified 4-state theory, which is in good consistence with the numerical results. Our model of the cavity array simulates the false vacuum tunneling back to real vacuum.