Research Of Electro-Optical Printed Circuit Board Based On Optical Waveguide Interconnection

With explosive growth of the speed of information processing and rapid development of optical communications technology, the chips optical interconnection on PCB will be most promising research and inevitable optical technology trend. Breakthrough of this research will be milestone of information processing and communication technology , computer calculation speed will increased more than 1,000 times . In the near future, PCB board will find its way into optical interconnection era.This thesis introduces a kind of optical interconnections between chips on optical-electronic hybrid PCB, which uses 45°facet fiber bar arrays to couple the light emitted by VCSEL array into a rectangular array of polymer optical waveguide embedded within the PCB board, then by 45°facet fiber bar array couples the light from the waveguide into PIN photonic detector array. This thesis gives the simulation and analysis of defect tolerance of rectangular waveguide. the thesis discusses in detail manufacturing process of the SUS - 8 polymeric mold and its parameters, and measuring the depth and width. We adopt PDMS material, SUS - 8 polymer mold as a master model, by doctor blading technique, through the process of separation master mold to produce 70μm×70μm flexible rectangular waveguide. The thesis measures optical waveguide transmission loss, which is 0.30dB/cm@632.8nm. Through observation by the CCD, waveguide near field distribution is very clear. By measurement of single channel waveguide operating at 3.125Gb/s high-speed optical signal, the thesis observes good eye diagram and BER is 10-12 ,very low. The thesis gives the analysis of space mismatch coupling loss and mode mismatch loss between fiber and rectangular waveguide. Finally Based on the present coupling research of waveguide, this thesis proposes a new embedded 90°and 180°bent optical waveguide array structure.