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Proceedings Paper

Microchannel-plate-based electro-optical A-D conversion
Author(s): Mohamed C. Zatet; Robert Y. Levine
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Paper Abstract

A novel microchannel plate (MCP) based electrooptical A/D converter is proposed for signal bandwidths in excess of 100 MHz. The signal forward-biases an electron flux through 500 impedance matched transmission lines deposited on an MCP. The backbiasing of the gap between adjacent MCPs provides a voltage threshold for the signal triggering of an electron cascade in the second MCP. The second MCP is biased by a square wave timing pulse in order to measure the time at which the signal exceeded the backbias threshold. It is shown that reasonable MCP operating parameters result in 100 psec time resolution. The Nyquist criteria is applied to determine the least bit size for voltage sampling of a transient pulse.

Paper Details

Date Published: 12 January 1993
PDF: 10 pages
Proc. SPIE 1772, Optical Information Processing Systems and Architectures IV, (12 January 1993); doi: 10.1117/12.140921
Show Author Affiliations
Mohamed C. Zatet, Suffolk Univ. (United States)
Robert Y. Levine, Lincoln Lab./MIT (United States)

Published in SPIE Proceedings Vol. 1772:
Optical Information Processing Systems and Architectures IV
Bahram Javidi, Editor(s)

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