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Optical Engineering

Measurement of the characteristics of a quandrant avalanche photo-diode application to a laser tracking system
Author(s): Masahiro Toyoda; Kenichi Araki; Yoshiaki Suzuki
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Paper Abstract

We measured the characteristics of a quadrant-type avalanche photodiode (APD). Its transition region between the adjacent cells had a narrow width of 35 ?m. As the multiplication factor of the quadrant APD was limited by the variety of that among the quadrant cells, the maximum multiplication factor was about 30. We investigated the performance on applying the quadrant APD to a laser tracking system. A noise- equivalent angle of less than 1 ?rad (rms) was achieved at a received optical power of more than 4 pW. The quadrant APD compared favorably with a photodiode quadrant detector when the received power was less than 100 pW.

Paper Details

Date Published: 1 January 2002
PDF: 5 pages
Opt. Eng. 41(1) doi: 10.1117/1.1418222
Published in: Optical Engineering Volume 41, Issue 1
Show Author Affiliations
Masahiro Toyoda, Communications Research Lab. (Japan)
Kenichi Araki, Communications Research Lab. (Japan)
Yoshiaki Suzuki, Communications Research Lab (Japan)

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