Synchronous Demodulation of Coherent 16-QAM with Feedforward Carrier Recovery

Ali AL-BERMANI  Christian WORDEHOFF  Sebastian HOFFMANN  Timo PFAU  Ulrich RUCKERT  Reinhold NOE  

IEICE TRANSACTIONS on Communications   Vol.E94-B   No.7   pp.1794-1800
Publication Date: 2011/07/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E94.B.1794
Print ISSN: 0916-8516
Type of Manuscript: INVITED PAPER (Joint Special Section on Opto-electronics and Communications for Future Optical Network)
optical communication,  16ary quadrature amplitude modulation,  coherent communication,  phase estimation,  feedforward carrier recovery,  

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We present the recovery of 2.5 Gb/s synchronous 16-point quadrature amplitude modulation data in real-time for an linewidth-times-symbol-duration ratio of 0.00048 after transmission over 1.6 km standard single mode fiber.