Photodetector frequency-response measurements at NIST (US) and NPL (UK): preliminary results of a standard laboratory comparison

Paul D. Hale; David A. Humphreys; Allen D. Gifford

doi:10.1117/12.175276

2 May 1994 Photodetector frequency-response measurements at NIST (US) and NPL (UK): preliminary results of a standard laboratory comparison

Paul D. Hale, David A. Humphreys, Allen D. Gifford

Author Affiliations +

Proceedings Volume 2149, Technologies for Optical Fiber Communications; (1994) https://doi.org/10.1117/12.175276
Event: OE/LASE '94, 1994, Los Angeles, CA, United States

Abstract

We report the first comparison of high speed photodiode frequency response measurements up to 40 GHz between NIST and NPL in the 1.3 and 1.5 micrometers wavelength regions. This comparison is an important step in establishing international agreement on photodiode response measurements, with traceability to international microwave power and DC current standards. Measurements at NIST used a Nd:YAG heterodyne system. NPL used DFB heterodyne and integrated-optical modulator-based techniques. Measurements of a photodiode with nominally 20 GHz optical bandwidth show good agreement with average scatter of +/- 0.15 dB (2(sigma) ) below 20 GHz, and +/- 0.30 dB from 20 to 33 GHz. The results diverge systematically above 33 GHz, due to calibration of the RF power sensors. Scatter in the data is well represented by the combined uncertainties of the measurement systems up to 33 GHz.

Citation Download Citation

Paul D. Hale, David A. Humphreys, and Allen D. Gifford "Photodetector frequency-response measurements at NIST (US) and NPL (UK): preliminary results of a standard laboratory comparison", Proc. SPIE 2149, Technologies for Optical Fiber Communications, (2 May 1994); https://doi.org/10.1117/12.175276

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