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)

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

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

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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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