In order to realize laser alarming systems with high anti-jamming property and wide field of view

this paper proposes a design scheme for the optical probe by applying tapered fibers.It implements the photovoltaic conversion by the direct coupling of a tapered fiber with a photodiode and indicates the energy of the incident light by measuring the voltage value.It analyzes the selection of the angle of the tapered fiber and the received fiber energy and conducts the relevant experiments according to the alarming system design requirements.The experimental data show that this method can amplify the detection field of the alarming system.