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Synchronization monitoring of I/Q data and pulse carving misalignment for a serial-type 80-Gb/s RZ-DQPSK transmitter through optical/RF clock tone measurement

Published

Author(s)

Jeffrey A. Jargon, Xiaoxia Wu, Louis Christen, Scott Nuccio, Omer F. Yilmaz, Loukas Paraschis, Yannick K. Lize, Alan Willner

Abstract

We experimentally demonstrate a monitoring technique for determining misalignment between the in-phase/ quadrature (I/Q) data streams and between the data and pulse carving in an 80 Gb/s serial-type return-to-zero differential quadrature phase-shift-keying (RZ-DQPSK) transmitter. By measuring optical clock tone power and the radio frequency (RF) clock tone power, a monitoring-power-dynamic-range (MPDR) of 8 dB is obtained for I/Q data misalignment and 6 dB for data/pulse carving misalignment.
Citation
IEEE Photonics Technology Letters

Keywords

fiber optics communications, return-to-zero differential quadrature phase-shift-keying (RZ-DQPSK), synchronization monitoring

Citation

Jargon, J. , Wu, X. , Christen, L. , Nuccio, S. , Yilmaz, O. , Paraschis, L. , Lize, Y. and Willner, A. (2008), Synchronization monitoring of I/Q data and pulse carving misalignment for a serial-type 80-Gb/s RZ-DQPSK transmitter through optical/RF clock tone measurement, IEEE Photonics Technology Letters (Accessed May 22, 2024)

Issues

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Created August 4, 2008, Updated February 19, 2017