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Proceedings Paper

Analysis Of Light Spot Position Using Semiconductor Position Sensitive Detector
Author(s): Irena Gronowska; Krystyna Strupczewska
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Paper Abstract

Output signal from a position sensitive detector illuminated by means of an optical fiber was measured. Light sources were light emitting diode CQYP 06W or CQDP 42 W. Linear characteristics of the signal height as a function of light spot positions were obtained. Output signal from the detector was also measured using two optical fibers with a fixed distance between them. The measured slope of the linear characteristic for one optical fiber was a1 = [10,49 ± 0,14] mV/mm and for two optical fibers: a2 = [20,07 ± 0,20] mV/mm Use of two optical fibers causes a rapid change of the output signal and results in a sudden jump of the characteristic slope. The results point to a possibility of an application of position sensitive detectors for an analysis of light spot position using one or more optical fibers.

Paper Details

Date Published: 10 November 1986
PDF: 4 pages
Proc. SPIE 0670, Optical Fibres and Their Applications IV, (10 November 1986); doi: 10.1117/12.938983
Show Author Affiliations
Irena Gronowska, Warsaw Technical University (Poland)
Krystyna Strupczewska, Warsaw Technical University (Poland)


Published in SPIE Proceedings Vol. 0670:
Optical Fibres and Their Applications IV
Ryszard S. Romaniuk; Mieczyslaw Szustakowski, Editor(s)

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