Disclosed are several embodiments of a battery-less piezo-electric defibrillation system comprising external piezo-electric defibrillator and at least one electrode connected thereto. The pressing member includes a pressing face pressing the fixing belt to a side of the pressuring member. An example apparatus includes write logic that is configured to operationally interface with a TAP controller and a processor. A photonic crystal amplifier amplifies the seed pulses to produce one or more amplified pulses characterized by a peak power P greater than about 1 kilowatt. The n-type InAlGaN cladding layer is provided between the n-type AlGaN cladding layer and the active layer.