Abstract

The spectral response of the United Detector Technologies model QED-200 quantum efficiency detector, along with that of other photodiodes, has been measured for two different wavelengths in the visible. The QED shows a strong temperature dependent response at certain power levels. It is shown that the effect comes from an increase in internal quantum efficiency due to a supralinearity effect at power levels of ~1 mW.

© 1990 Optical Society of America

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References

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  1. United Detector Technology QED-200 (quantum efficiency detector).
  2. E. F. Zalewski, C. R. Duda, “Silicon Photodiode Device with 100% External Quantum Efficiency,” Appl. Opt. 22, 2867–2873 (1983).
    [CrossRef] [PubMed]
  3. E. F. Zalewski, J. Geist, “Silicon Photodiode Absolute Spectral Response Self-Calibration,” Appl. Opt. 19, 1214–1216 (1980).
    [CrossRef] [PubMed]
  4. G. Eppeldauer, in Proceedings, Twelth International Symposium of the Technical Committee on Photon Detectors, Varna (21–23 May 1986).

1983 (1)

1980 (1)

Appl. Opt. (2)

Other (2)

United Detector Technology QED-200 (quantum efficiency detector).

G. Eppeldauer, in Proceedings, Twelth International Symposium of the Technical Committee on Photon Detectors, Varna (21–23 May 1986).

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Figures (7)

Fig. 1
Fig. 1

Experimental arrangement for the reverse bias measurements (see text).

Fig. 2
Fig. 2

Relative response of the QED vs reverse bias voltage at 647.1 nm for different temperatures.

Fig. 3
Fig. 3

Relative response of the QED vs reverse bias voltage at 476.2 nm for different temperatures the * and ○ for 30°C correspond to measurements performed after increasing and decreasing the temperature setting to the value of 30°C, showing the repeatability of the results after changing the temperature.

Fig. 4
Fig. 4

Relative spectral response of a UDT UV-100 vs temperature at 647.1 nm, reverse bias = 5 V.

Fig. 5
Fig. 5

Experimental arrangement for the linearity measurement (see text).

Fig. 6
Fig. 6

Linearity curve of the QED as a function of radiant power at 647.1 nm.

Fig. 7
Fig. 7

Linearity curve of the QED as a function of radiant power at 476.2 nm.

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