Photodetection Technology Based on Laser Coding Emission

Abstract:

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For the extremely weak echo signal and the poor anti-interference ability of the long-distance laser fuze, the high signal noise ratio (SNR) receiving system based on laser coding mode was designed. In order to improve the weak signal receiving ability, the avalanche photodiode (APD) with high sensitivity, low noise and high gain was adopted. And the optimum multiplication factor of APD when the system obtains the highest SNR was analyzed and calculated. Then, the amplifying circuit optimum matching with APD and the decoding circuit were designed, and validated by the experiments. The theory and experiment results indicate that the design is efficiency and capable to the long distance laser fuze, the system can exactly decode the weak laser coding signals received and export the ignition signal.

Info:

Periodical:

Advanced Materials Research (Volumes 189-193)

Edited by:

Zhengyi Jiang, Shanqing Li, Jianmin Zeng, Xiaoping Liao and Daoguo Yang

Pages:

3745-3749

DOI:

10.4028/www.scientific.net/AMR.189-193.3745

Citation:

J. Guo et al., "Photodetection Technology Based on Laser Coding Emission", Advanced Materials Research, Vols. 189-193, pp. 3745-3749, 2011

Online since:

February 2011

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Price:

$35.00

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