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Coherent FM-SCM system using DFB lasers and a phase noise cancellation circuit

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3 Author(s)
R. Gross ; GTE Lab. Inc., Waltham, MA, USA ; R. Olshansky ; M. Schmidt

A multichannel coherent subcarrier multiplexing (SCM) system using standard distributed-feedback lasers is discussed. A simple phase noise canceling circuit yields excellent quality FM video transmission (SNR=56 dB), even though the 50-MHz IF linewidth exceeds the 30-MHz signal bandwidth.<>

Published in:

IEEE Photonics Technology Letters  (Volume:2 ,  Issue: 1 )