Operation of lateral effect photosensitive position sensors using differential time delay mode

I. Abdulhalim, S. Millward, G. Moores, L. Firth, F. Placido

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

We demonstrate the feasibility of operating 1-D lateral effect photosensitive position sensors by measuring the time of delay between the two terminals. This mode has the advantages of a linear response, avoiding the singularities associated with signal normalization, and thus the possibility of achieving higher SNR over the voltage difference mode of operation. This mode has the potential to simultaneously detect the centroids of several light spots modulated at different frequencies using frequency-division multiplexing techniques.

Original languageEnglish
Pages (from-to)3265-3269
Number of pages5
JournalOptical Engineering
Volume41
Issue number12
DOIs
StatePublished - 1 Dec 2002
Externally publishedYes

Keywords

  • Detectors
  • Optoelectronics
  • Sensors

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Engineering (all)

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