Quasi-feed-forward linearization of electro-optic modulators for analog signal transmission

D'Arcy Davidson; Ruediger Vahldieck

doi:10.1117/12.130138

1 April 1993 Quasi-feed-forward linearization of electro-optic modulators for analog signal transmission

D'Arcy Davidson, Ruediger Vahldieck

Author Affiliations +

Optical Engineering, Vol. 32, Issue 4, (April 1993). https://doi.org/10.1117/12.130138

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.

Citation Download Citation

D'Arcy Davidson and Ruediger Vahldieck "Quasi-feed-forward linearization of electro-optic modulators for analog signal transmission," Optical Engineering 32(4), (1 April 1993). https://doi.org/10.1117/12.130138

Published: 1 April 1993

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