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System to phase lock a self-scanning photodiode array to an external signal (1992)

Harvey, K. C. ; Lea, Patrick W. ; Morris, J. E.

[S.l.] : American Institute of Physics (AIP)

Review of Scientific Instruments 63 (1992), S. 1991-1998

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ISSN: 1089-7623

Source: AIP Digital Archive

Topics: Physics , Electrical Engineering, Measurement and Control Technology

Notes: We describe an external control circuit for a commercial, real-time, self-scanning photodiode array system. It had a phase-locked loop that synchronized the scan of the photodiode array to an external reference frequency. The signal from the photodiode array had, in principle, an infinite signal-to-noise ratio at the reference frequency. The circuit allowed independent adjustment of the integration time of the array and was simple and inexpensive to build. It was useful in measuring periodic or pulsed spectra such as occurs in laser or communications experiments.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1063/1.1143317

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