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Frequency Estimation in Intradyne Reception

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4 Author(s)
Leven, Andreas ; Bell Labs., Alcatel-Lucent, Murray Hill, NJ ; Kaneda, N. ; Ut-Va Koc ; Young-Kai Chen

We report on an optical intradyne receiver experiment with frequency estimation. Frequency estimation allows, if performed prior to block phase estimation or other phase recovery techniques, for a much higher frequency difference between transmit laser and local oscillator laser. We demonstrate the feasibility of our approach in a 20-Gb/s quadrature phase-shift keying experiment

Published in:

Photonics Technology Letters, IEEE  (Volume:19 ,  Issue: 6 )