Phase shift keyed modulation of optical signal using chirp...

Optical communications – Transmitter and receiver system – Including polarization

Reexamination Certificate

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C398S141000, C398S139000, C398S184000, C398S205000

Reexamination Certificate

active

08068742

ABSTRACT:
A high-speed optical transmitter comprises multiple digital lanes that are provided to a bank of digital-to-analog converters. The analog signals are then used to Phase Shift Keyed (PSK) modulation using a Chirp Managed Laser (CML)-based transmitter, and potentially using dual polarization. A corresponding optical receiver receives the sequence of optical signals at a demodulator. For each polarization, the demodulator includes a corresponding demodulation channel that is configured to demodulate that polarization component of the optical signal into one or more signal components. Each of these signal components is converted into a corresponding digital signal using a corresponding analog-to-digital converter. In the case of higher-order PSK modulation (e.g., 8PSK or higher), for each polarization, the analog converter has a lower sampling rate than for QPSK modulation.

REFERENCES:
patent: 4878726 (1989-11-01), Fatehi
patent: 4959826 (1990-09-01), Smith
patent: 5170402 (1992-12-01), Ogita et al.
patent: 5325382 (1994-06-01), Emura et al.
patent: 5999300 (1999-12-01), Davies et al.
patent: 6341023 (2002-01-01), Puc
patent: 6559994 (2003-05-01), Chen et al.
patent: 7187821 (2007-03-01), Matsui et al.
patent: 7286572 (2007-10-01), Hornbuckle et al.
patent: 7321734 (2008-01-01), Roberts et al.
patent: 7356264 (2008-04-01), Mahgerefteh et al.
patent: 7433604 (2008-10-01), Kim et al.
patent: 7474859 (2009-01-01), Mahgerefteh et al.
patent: 7502567 (2009-03-01), Ranganath
patent: 7680420 (2010-03-01), Walker et al.
patent: 7848661 (2010-12-01), Iannelli
patent: 7860402 (2010-12-01), Tian et al.
patent: 7881618 (2011-02-01), Yan et al.
patent: 7912378 (2011-03-01), Tian et al.
patent: 7941058 (2011-05-01), Ohm et al.
patent: 7962045 (2011-06-01), McCallion et al.
patent: 2004/0028418 (2004-02-01), Kaplan et al.
patent: 2005/0271394 (2005-12-01), Whiteaway et al.
patent: 2006/0013590 (2006-01-01), Hueda et al.
patent: 2007/0274731 (2007-11-01), Boffi et al.
patent: 2008/0193145 (2008-08-01), Yokoyama
patent: 2008/0240729 (2008-10-01), Toyoda et al.
patent: 2008/0247763 (2008-10-01), Mahgerefteh et al.
patent: 2009/0003842 (2009-01-01), Mahgerefteh et al.
patent: 2009/0003843 (2009-01-01), Oomori
patent: 2009/0074407 (2009-03-01), Hornbuckle et al.
patent: 2009/0169213 (2009-07-01), Lowery et al.
patent: 2009/0279891 (2009-11-01), Yu
patent: 2009/0324253 (2009-12-01), Winzer
patent: 2010/0008679 (2010-01-01), Cole et al.
patent: 2010/0086314 (2010-04-01), Yu et al.
patent: 2011/0129230 (2011-06-01), Zanoni et al.
Tokle, Torger et al., Advanced Modulation Formats for Transmission Systems, Optical Fiber Communication/National Fiber Optic Engineers Conference, Feb. 24-28, 2008, 3 pages, San Diego, CA.
Kikuchi, Nobuhiko, et al., Experimental Demonstration of Incoherent Optical Multilevel Staggered-APSK (Amplitude-and Phase-Shift Keying) Signaling, Optical Fiber Communication/National Fiber Optic Engineers Conference, Feb. 24-28, 2008, 3 pages, San Diego, CA.
Freund, R. et al., 30Gbit/s RZ-8-PSK Transmission over 2800km Standard Single Mode Fibre without Inline Dispersion Compensation, Presentation, Optical Fiber Communication/National Fiber Optic Engineers Conference, Feb. 24-28, 2008, 3 pages, San Diego, CA.
Sekine, Kenro, et al., Advanced Multi-level Transmission Systems, Optical Fiber Communication/National Fiber Optic Engineers Conference, Feb. 24-28, 2008, 3 pages, San Diego, CA.
Proposal and feasibility study of a 6-level PSK modulation format based system for 100-Gb/s migration Kiyoshi Fukuchi, 2007, 3 Pages.
30 Gbit/s RZ-8-PSK Transmission over 2800 km Standard Single Mode Fibre without Inline Dispersion Compensation Ronald Freund,Dirk-Daniel Gross, Matthias Seimetz, Lutz Molle, Christoph Caspar, 2007, 3 Pages.

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