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Coherent analog FM-SCM video transmission using direct frequency modulation of semiconductor lasers

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Abstract

The advantages of analog subcarrier-multiplexed (SCM) FM video transmission using frequency modulation of the optical carrier over other analog laser modulation schemes include the reduced impact of laser relative intensity noise and the phase noise suppression achievable in a receiver employing FM demodulation of both the subcarrier and optical carrier. Way et al.1 detected these FM-FM signals using an erbium-doped fiber amplifier and an optical frequency discriminator followed by a direct-detection receiver. We examine the performance of a coherent receiver for the same use.

© 1992 Optical Society of America

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