Research Of Polymer Optical Waveguide Based Electrical-Optical Printed-Circuit Board

The growing demand of high speed data communication has made traditional electrical interconnection on board a bottleneck. It will not satisfy the demand because of some connatural disadvantage. However, problem will be solved if we choose the optical interconnection. Optical transmission have lots of advantage such as low attenuation, large capacity, high bandwidth, so we use optical wave-guide to take places of cuprum-line, embed optical wave-guide into normal printed-circuit board to connect high speed chip, could solve the disadvantage of electrical signal in high-frequency transmission. So the electrical-optical printed-circuit board comes to the key-point in currently research. This dissertation is concentrated on lucubrate how to produce the polymer optical waveguide based on EOPCB, including numerical simulation, compute loss of fiber coupling with optical waveguide, material characteristic, fabrication, application.In this thesis, at first we will introduce the electromagnetic theory of optical planar waveguide, analyze the transmission characteristic of different modes and the connection loss of fiber. Second, we will design the straight optical waveguide, put forward doctor-blading, a new facture method to produce the waveguide. Then we will analyze the coupling blue print of EOPCB, and compute the loss of fiber coupling with optical waveguide, it will be useful in experimentation. We also study on analyzing the material characteristic and choose PDMS to experiment. At last, the experiment process of doctor-blading will be proposed, manufacture the straight optical waveguide, sum up and optimize the fabrication technics of doctor-blading. This method have lots of advantage, such as easy to control the size of waveguide, no especial require to materials, it's could match the request to produce the large size,low cost optical waveguide in the future.