버스트 모드 광송신기의 디지털 방식을 사용한 온도보상에 관한 연구

A Study on tne Temperature Com pensation of Burst Mode Transm itter using Digital Method

This paper presents the bust mode optical transmitter to make the electric burst mode date signal transfer to a optical signal through the laser diode. Moreover, making the test board to be used the AVR megal28 processor, not the previous analog method in order to the stable data transmission of the laser diode, we have transferred the minute electric current to be drained from the monitor photo diode to the analog-digital converter so that we have designed the auto power control circuit and produced it to measure the feature for the purpose of a rise in surrounding temperature and the use in a long period of time. In this paper, the method of the bust mode optical transmitter can be the technical basis for the chip development in the optical multiple connection network in future. Though the digital auto power control circuit should be complemented with accuracy and minuteness compared to the previous analog auto power control circuit, the use of the digital circuit will be more effective in further future with the development for the transmitting speed.