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Optical Engineering

Broadband microwave fiber optic link with a compact transmitter
Author(s): James H. Schaffner; Robert R. Hayes; Robert L. Joyce; Jack B. Lewis; Joseph L. Pikulski; Huan-Wun Yen; Caroline M. Gee
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Paper Abstract

A microwave fiber optic link is developed for operation from 8 to 18 GHz. Modulation of a 1.3-μm wavelength optical carrier is accomplished using a lithium niobate Mach-Zehnder interferometer modulator that was designed for broadband operation up to 19 GHz. The link transmitter components, which consist of a high-power semiconductor laser, an optical isolator, and a modulator with polarization-preserving fiber pigtails, are spliced together to fit into a 10.16- x 5.08- x 2.54-cm3 (4- x 2- x 1-in.) box for applications where space is critical. The average link electrical gain is 45 dB, the frequency response is flat to within ±4 dB across the 10-GHz band, and the spur-free dynamic range of the link is 84 dB.

Paper Details

Date Published: 1 January 1994
PDF: 7 pages
Opt. Eng. 33(1) doi: 10.1117/12.151998
Published in: Optical Engineering Volume 33, Issue 1
Show Author Affiliations
James H. Schaffner, Hughes Aircraft Co. (United States)
Robert R. Hayes, Hughes Research Labs. (United States)
Robert L. Joyce, Hughes Aircraft Co. (United States)
Jack B. Lewis, Hughes Aircraft Co. (United States)
Joseph L. Pikulski, Hughes Research Labs. (United States)
Huan-Wun Yen, Hughes Research Labs. (United States)
Caroline M. Gee, Ortel Corp. (United States)


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