Basides traditional methods, this paper also introduced some new technologies such as FSM, fiber optic sensor, holographic interferometry etc.
除了传统方法外又介绍了一些新的技术如：场图象法、光纤传感器、全息干涉等。
2
In this paper, a novel coupler-holographic coupler bet-ween light emitted diode (LED) and fiber is proposed. The theoretical, design is carried out. The method and results of design are given.