Optical sampling and demultiplexing applied to A/D conversion

John A. Bell; Michael C. Hamilton; David A. Leep

doi:10.1117/12.50785

1 December 1991 Optical sampling and demultiplexing applied to A/D conversion

John A. Bell, Michael C. Hamilton, David A. Leep

Proceedings Volume 1562, Devices for Optical Processing; (1991) https://doi.org/10.1117/12.50785
Event: San Diego, '91, 1991, San Diego, CA, United States

Abstract

Electro-optic sampling of wideband signals using short duration pulses from a diode laser may offer advantages over the electronic sampling performed in A/D converters. A hybrid optical/electronic A/D conversion technique is described which overcomes some of the difficulties encountered in previous efforts in this area. This hybrid technique uses electrooptic components to perform sampling and time-demultiplexing together with multiple electronic A/D converters. A system which uses 4 parallel electronic A/D converters and a pulsed diode laser is demonstrated with a sample rate of 2 GHz. For single-tone test signals in the range of 10 to 11 Ghz, the precision of this system is as high as 2.8 effective bits, limited principally by laser jitter.

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John A. Bell, Michael C. Hamilton, and David A. Leep "Optical sampling and demultiplexing applied to A/D conversion", Proc. SPIE 1562, Devices for Optical Processing, (1 December 1991); https://doi.org/10.1117/12.50785

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