Journal of Shanghai University(Natural Science Edition) ›› 2016, Vol. 22 ›› Issue (4): 449-460.doi: 10.3969/j.issn.1007-2861.2015.01.004

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Design of parallel photosensitive array in ternary optical computer decoder

SHI Yeqiang, JIN Yi, OUYANG Shan, ZHAN Haojun   

  1. School of Computer Engineering and Science, Shanghai University, Shanghai 200444, China
  • Received:2014-12-17 Online:2016-08-30 Published:2016-08-30

Abstract:

This paper discusses the design of a parallel photosensitive array for a decoder in a thousand-bit ternary optical computer. The strategy is to make a parallel module with 16 photosensitive pixels and circuits, and joint some modules into a utility parallel photosensitive array. Each module transforms 16 three-state optical signals from a ternary optical processor into 16 two-state electoral signals concurrently. A parallel photosensitive array then transforms thousands of three-state optical signals into electoral signals concurrently. Thus the module becomes a low-cost, maintainable and replaceable parallel photoelectric device. Experiments are performed to verify stability and correctness of the photosensitive pixels and their circuits. A test on four samples of the module outline shows that splicing a large-scaled photosensitive array with lots of modules is convenient.

Key words: module design,  parallel photosensitive array ,  ternary optical computer , photoelectric conversion