Design Of Optical Fiber Transmission System Used For Transmitting Video,Audio And Data

This task is designed to enhance the digital optical transmitter and receiver of Harbin Rock Optic-electronic Technique Co.,LTD. The digital optical transmitter and receiver used in industry and traffic ,which has been studied in order to conquer the disadvantages of analog device and improve the function of the digital optical transmitter and receiver It must accurately transmit one video signal > one audio signal and two data signals in one fiber and work well when the temperate has changed greatly.This subject uses LSI and CPLD to design one special digital optical transmission system. This system can transmit one video signal , one audio signal and two data signals the video for watch ,the audio for listening ,the data signal for control and giving an alarm. Finish the design of the hardware and software.The system makes use of the WDM mode to realize two reverse signals transmitter in one fiber and designs the practical circuit .At last, the paper gives out the accurate capabilities that are attributed to the video signal and the data signal. The experiment proves that this method is both right and practical.