.Optimal design of APD biasing circuit[J].Optoelectronics Letters,2007,3(3):237-240 Optimal design of APD biasing circuit SUN Chun-sheng QIN Shi-qiao WANG Xing-shu ZHU Dong-hua [1]College of Optoelectronic Science and Technology, National University of Defense Technology, Changsha 410073, China [2]Department of Weaponry Engineering, Naval University of Engineering, Wuhan 430033, China Abstract:       This paper proposes a control method for avalanche photodiode (APD) reverse bias with temperature compensation and load resistance compensation. The influence of background light and load resistance on APD detection circuit is analyzed in detail. A theoretical model of temperature compensation and load resistance compensation is established, which is used for APD biasing circuit designing. It is predicted that this control method is especially suitable for LD laser range finder used on vehicles. Experimental results confirm thatthe design proposed in this paper can considerablely improve the performance of range finder. Hits: 3470 Download times: 202 View Full Text    Download reader