Optimal design of APD biasing circuit

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 that the design proposed in this paper can considerablely improve the performance of range finder.

References

[1] TanQ.-g., HuY., LinP.. Journal of Optoelectronics. Lasers, 2006, 17: 77

[2] SunC.-s., QinS.-q., WangX.-s.. Laser & Infrared, 2006, 36: 632

[3] WeiZ.-j., LiaoC.-j., WangJ.-d.. Acta Photonica Sinica, 2006, 35: 906

[4] TangZ.-h.. Laser Technology, 1992, 16: 262

[5] HuoL.-z.. Laser Technology, 1993, 17: 137

[6] TanX.-y.. Optoelectronic Technology, 2001, 21: 129

[7] Zhang Zai-xuan, Guo Ning, and Yu Xiang-dong, Journal of Optoelectronics Lasers, (1999),132. (in Chinese)

[8] RongT.-p., MiaoL.. J. Huazhong Univ. of Sci. & Tech., 2004, 32: 16

[9] LvH., WangR.. Infrared and Laser Engineering, 2002, 31: 44

[10] MiuJ.-d., XvW.-j., MouT.-s.. Photoelectricity Technology, 1987, Hangzhou, Zhejiang University Press, 141-142

[11] Yi-Ren Lai and Pie-You Chien, Method and apparatus for reducing the noise in the receiver of a laser range finder, U. S. Patent:5, 946, 081, Aug.31,1999.

[12] I-Jen Lai, Pi-Yao Chien, and Chih-Wei Hung, Light receiving circuit of laser range finder, U.S. Patent: US2002/0033937 A1, Mar. 21, 2002.