Application The energy reversed feedbacking laser welder can be applied in many fields.It can be used to the production of such products as :micro motor in the digital camera, the battery of the cell phone, fiber collector, the magnetic head of the driver in computers,precise relay,and precise sensors and so on. Characteristics of the laser welder With the high stability in the output energy ,it greatly improve the turnoff rate of the laser processing. According to the different materials to be weldered ,the output energy’s waveshape can be set and controlled . Therefore, more delicate welding result can be achieved. With the fiber output, its edge over the traditional stiff light path is that it improve the processing flexibility. Features of this machine The energy reversed feedbacking YAG laser welder,developed by the optoelectronics institute of the Shenzhen University, passed the technical authenticate by the Shenzhen scientific authority.The operating pricinple of this machine is by adding a energy-checking device in output terminal in the laser,the energy output can be checked,and the checking result can be feedbacked to the controling terminal. A closed loop controlling system is formed on the based on the coparison between the output energy and the setting output energy.Thus the output energy of the laser can be accurately controlled.The key technology is the energy-checking technology and the realtime controlling system of the high power parts.