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Proceedings Paper

A new, monolithic encoding digital photodetecter array
Author(s): Xuan Huang
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Paper Abstract

At present, each element of the photodetecter array (PDA) is an individual source providing electronic signal, it must be connected with a seperate signal amplifying circuits. The more the array elements are, the more complex the circuits are. Another problem is that this kind of PDA has a high false-code-rate. We have designed and manufactured a new monolithic encoding digital PDA adopting the Gray encoding mode which has low false-code- rate. It is made of 32 photodiodes on one silicon chip. All 32 photodiodes is divided into six groups according a certain pattern, then connected to six output points followed by six groups of hybrid integrated amplifieres where the electronic signal is amplified and out put a 6-bit binary digit according Gray code. They are all mounted in a single sealed package. If the design is changed, similar encoding digital photodetecter array can also out put other bits binary code. Some measurement results is presented.

Paper Details

Date Published: 1 July 1990
PDF: 1 pages
Proc. SPIE 1230, International Conference on Optoelectronic Science and Engineering '90, 123011 (1 July 1990); doi: 10.1117/12.2294674
Show Author Affiliations
Xuan Huang, Southwest Institute of Technical Physics (China)


Published in SPIE Proceedings Vol. 1230:
International Conference on Optoelectronic Science and Engineering '90
DaHeng Wang, Editor(s)

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