Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Sixty-channel coherent FM-SCM system for video distribution

Not Accessible

Your library or personal account may give you access

Abstract

Subcarrier multiplexing (SCM) techniques offer an attractive approach for broadband distribution of FM video signals in the subscriber loop. To allow for distribution to many subscribers via passive optical splitting, improvements in the receiver sensitivity over direct detection systems are necessary. Possible approaches include using an APD detector1 or optical amplifiers as a repeater/ preamplifier.2,3 An alternative is to employ coherent detection techniques. We report the transmission of sixty FM video channels using coherent SCM. To obtain a CNR of 17 dB and a corresponding SNR of 56 dB, the detected optical power was —32 dBm with a phase modulation index of β = 0.07. This represents a 15.2- dB improvement over a similar sixty-channel direct detection FM- SCM system4 and a 5.6-dB improvement compared with the system when an optical preamplifier was used.3

© 1990 Optical Society of America

PDF Article
More Like This
Sixty-channel FM video subcarrier multiplexed optical communication system

R. OLSHANSKY and V. A. LANZISERA
ThO2 Optical Fiber Communication Conference (OFC) 1988

Coherent subcarrier multiplexed lightwave systems

RICHARD GROSS
CWD1 Conference on Lasers and Electro-Optics (CLEO) 1990

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

L. G. Kazovsky and J. C. Fan
TuD5 Optical Fiber Communication Conference (OFC) 1992

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2022 | Optica Publishing Group. All Rights Reserved