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Optical Engineering

Quasi-feed-forward linearization of electro-optic modulators for analog signal transmission
Author(s): D'Arcy Davidson; Ruediger Vahldieck
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Paper Abstract

A quasi-feed-forward (QFF) linearization scheme for use with electro-optic modulators is presented. This scheme provides an increase in the intermodulation-free dynamic range of the modulator as well as substantial cancellation of laser relative intensity noise (RIN) of the cw source. The results of this investigation indicate that such a scheme is adequate for the transmission of 100 or more Canadian television channels transmitted in a vestigial sideband AM format using a cw source with a RIN of only - 130 dB/Hz. A tolerance analysis has been performed to predict the effects of a nonideal practical implementation.

Paper Details

Date Published: 1 April 1993
PDF: 5 pages
Opt. Eng. 32(4) doi: 10.1117/12.130138
Published in: Optical Engineering Volume 32, Issue 4
Show Author Affiliations
D'Arcy Davidson, University of Victoria (Canada)
Ruediger Vahldieck, Univ. of Victoria (Switzerland)


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