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Applied Optics

Applied Optics


  • Vol. 18, Iss. 10 — May. 15, 1979
  • pp: 1555–1558

Multidecade linearity measurements on Si photodiodes

W. Budde  »View Author Affiliations

Applied Optics, Vol. 18, Issue 10, pp. 1555-1558 (1979)

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It is often claimed that silicon photodiodes are linear over many decades, but very little evidence on the experimental verification can be found in the literature. Therefore, an effort was made to investigate the linearity of Si photodiodes over as many decades as possible. Optically, the experiments are based on a cascaded use of the linearity tester described by Sanders, which utilizes the double-aperture method. The electronics include an operational amplifier, a voltage-to-frequency converter, and a counter. Details of the optical and electronic instrumentation will be presented. The measurements are extended to cover a range of about 9 decades, from 10 mA to about 10 pA. Measurements were made on Si photodiodes from various manufacturers, and the results are given.

© 1979 Optical Society of America

Original Manuscript: October 26, 1978
Published: May 15, 1979

W. Budde, "Multidecade linearity measurements on Si photodiodes," Appl. Opt. 18, 1555-1558 (1979)

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  1. C. L. Sanders, J. Res. Nat. Bur. Stand. Sect. A: 76, 437 (1972).
  2. C. L. Sanders, Appl. Opt. 1, 207 (1962). [CrossRef]
  3. For obvious reasons, the curves will not be identified with any of the photodiodes listed in Table I.
  4. A. R. Schaefer, E. F. Zalewski, M. A. Lind, J. Geist, “Linearity Studies on Silicon Photodiodes,” in Proceedings of the Electro-Optics/Laser 77 Conference and Expositions, Anaheim, California, October 1977, p. 459.

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