NDLI: Single-Channel 400-Gb/s OTDM-32 RZ/QAM Coherent Transmission Over 225 km Using an Optical Phase-Locked Loop Technique

Content Provider	IEEE Xplore Digital Library
Author	Kasai, K. Omiya, T. Pengyu Guan Yoshida, M. Hirooka, T. Nakazawa, M.
Copyright Year	1989
Abstract	A single-channel 400-Gb/s transmission with a polarization-multiplexed , 10-Gsymbol/s, four-optical time-division multiplexed (OTDM) 32 return-to-zero/quadrature amplitude modulation (RZ/QAM) scheme is demonstrated for the first time. By using an optical phase-locked loop technique and a clock recovery circuit, we have successfully obtained a very stable pulsed-local oscillator whose phase was locked to the transmitter, and achieved precise demultiplexing and demodulation simultaneously. As a result, 400-Gb/s data were transmitted over 225 km with a bit-error-rate performance below the forward-error correction limit. Furthermore, we also realized a 320-Gb/s to 450-km transmission with an OTDM 16 RZ/QAM scheme.
Sponsorship	IEEE Lasers and Electro-Optics Society
Starting Page	562
Ending Page	564
Page Count	3
File Size	493869
File Format	PDF
ISSN	10411135
Volume Number	22
Issue Number	8
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-04-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Quadrature amplitude modulation Phase locked loops Optical transmitters Optical modulation Optical polarization Clocks Optical pulses Pulse circuits Oscillators Demultiplexing quadrature amplitude modulation (QAM) Coherent transmission optical phase-locked loop (OPLL) optical time-division multiplexing (OTDM) polarization-multiplexing (PM)
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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