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Proceedings Paper

Operational characteristics of an optically implemented microwave frequency synthesizer
Author(s): Irwin J. Abramovitz; D. E. Flechsig; Edward C. Malarkey; Norman P. Bernstein
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Paper Abstract

A multistage optically implemented microwave frequency synthesizer has been designed and fabricated. The concept and implementation are described with emphasis on operational characteristics of a prototype 3-stage unit. The synthesizer is designed as an optical analogue of the mix-and-divide approach to frequency synthesis taking advantage of the single-sideband, supressed-carrier modulation produced by the Bragg acousto-optic interaction and the sum- only or difference-only mixing of optical heterodyne detection without the need for any in- stage passband filtering. The synthesizer exhibits a 500 MHz bandwidth and completely switches and settles stably upon a new frequency within 250 nanoseconds. Phase noise was measured to be less than -130 dBc/Hz at 10 KHz offset from the carrier.

Paper Details

Date Published: 1 October 1995
PDF: 12 pages
Proc. SPIE 2560, Optical Technology for Microwave Applications VII, (1 October 1995); doi: 10.1117/12.218522
Show Author Affiliations
Irwin J. Abramovitz, Westinghouse Advanced Technology Lab. (United States)
D. E. Flechsig, Westinghouse Advanced Technology Lab. (United States)
Edward C. Malarkey, Westinghouse Advanced Technology Lab. (United States)
Norman P. Bernstein, Rome Lab. (United States)


Published in SPIE Proceedings Vol. 2560:
Optical Technology for Microwave Applications VII
Anastasios P. Goutzoulis, Editor(s)

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