Microwave Magnetostatic Wave And Guided Optical Waves In Pulse Diffraction Study

Magneto-optical bragg devices has a very broad application prospects in the field of information processing and optical communication and the advantage of parallel processing. This paper studies on the theory of the effects of multi-frequency magneto-optical on the pulse guided optical wave and provide theoretical guidance for the carrying out of corresponding experiments and the application of the device.The main contents include the following:1. Describes the Multi-stage diffraction process of the interaction between the pulsed guided optical wave and simultaneous causation of several different frequencies of MSW and analyzes the production of diffraction state and transferring characteristics under the tri-band case. The article gives the formula of diffraction state. And deduces the coupled mode equations of the interaction between the pulse guided wave and tri-band MSW, presents the coupled mode equation analytic solution in the small signal cases.2. Studies the principle of MSW frequency interval when pulse guided waves interacting with Multi-frequency MSW. When the frequency interval of Multi-frequency MSW increases, the balance between the diffraction pulses decrease, and the corresponding -3dB balanced bandwidth is about 40MHz. When pulsed guided waves interacting with Multi-frequency MSW, the case of peak intensity of diffraction pulse gradually getting close to continuous guided waves with the increasing of the width of incident guided wave pulse. When the incident guided wave pulse width is greater than 1.1ps, it can be handled as the effect multi-frequency MSWon continuous guided wave.3. A novel scheme of the application of magneto-optical devices in optical packet is proposed. And it mainly analyses three aspects problems: (1) Use the magneto-optical modulator to generate optical labels; (2) Erase optical tag, filter out interfering signals; (3) Use opticalswitch to read label information.