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Proceedings Paper

Photodetector frequency-response measurements at NIST (US) and NPL (UK): preliminary results of a standard laboratory comparison
Author(s): Paul D. Hale; David A. Humphreys; Allen D. Gifford
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Paper 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.

Paper Details

Date Published: 2 May 1994
PDF: 12 pages
Proc. SPIE 2149, Technologies for Optical Fiber Communications, (2 May 1994); doi: 10.1117/12.175276
Show Author Affiliations
Paul D. Hale, National Institute of Standards and Technology (United States)
David A. Humphreys, National Physical Lab. (United Kingdom)
Allen D. Gifford, National Physical Lab. (United Kingdom)

Published in SPIE Proceedings Vol. 2149:
Technologies for Optical Fiber Communications
Gail J. Brown; Susan R. Sloan; Kenneth D. Pedrotti; Didier J. Decoster; Didier J. Decoster; Joanne S. LaCourse; Yoon-Soo Park; Kenneth D. Pedrotti; Susan R. Sloan, Editor(s)

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