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

Keisuke Kasai; Tatsunori Omiya; Pengyu Guan; Masato Yoshida; Toshihiko Hirooka; Masataka Nakazawa

doi:10.1109/LPT.2010.2042708

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

Keisuke Kasai, Tatsunori Omiya, Pengyu Guan, Masato Yoshida, Toshihiko Hirooka, Masataka Nakazawa

Broadband Engineering Division

Research output: Contribution to journal › Article › peer-review

25 Citations (Scopus)

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.

Original language	English
Pages (from-to)	562-564
Number of pages	3
Journal	IEEE Photonics Technology Letters
Volume	22
Issue number	8
DOIs	https://doi.org/10.1109/LPT.2010.2042708
Publication status	Published - 2010 Apr 15

Keywords

Coherent transmission
optical phase-locked loop (OPLL)
optical time-division multiplexing (OTDM)
polarization-multiplexing (PM)
quadrature amplitude modulation (QAM)

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Electrical and Electronic Engineering

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Single-Channel 400-Gb/s OTDM-32 RZ/QAM Coherent Transmission Over 225 km Using an Optical Phase-Locked Loop Technique. / Kasai, Keisuke; Omiya, Tatsunori; Guan, Pengyu; Yoshida, Masato ; Hirooka, Toshihiko ; Nakazawa, Masataka.

In: IEEE Photonics Technology Letters, Vol. 22, No. 8, 15.04.2010, p. 562-564.

Research output: Contribution to journal › Article › peer-review

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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.",

keywords = "Coherent transmission, optical phase-locked loop (OPLL), optical time-division multiplexing (OTDM), polarization-multiplexing (PM), quadrature amplitude modulation (QAM)",

author = "Keisuke Kasai and Tatsunori Omiya and Pengyu Guan and Masato Yoshida and Toshihiko Hirooka and Masataka Nakazawa",

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AU - Kasai, Keisuke

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AU - Guan, Pengyu

AU - Yoshida, Masato

AU - Hirooka, Toshihiko

AU - Nakazawa, Masataka

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