Abstract: By using the old CD driver and electronic technologies, the ＂eye diagram＂ formed by high frequency signal of compact disc is demonstrated on analog oscilloscope. The high frequency signal parameters, such as the highest voltage, normalized voltage I11R,I3R, resolution, symmetry, are measured. The demonstration installation which is accessible and easily manipulated by students shows the knowledge in high and innovative technologies and daily life. It could be used to demonstrate and analyze the characteristic of the optics experiment.

Key words: compact disk recordable, high frequency signal, eye diagram, parameter test