1-Gsymbol/s 64-QAM coherent optical transmission over 150 km

Jumpei Hongo; Keisuke Kasai; Masato Yoshida; Masataka Nakazawa

doi:10.1109/LPT.2007.894944

1-Gsymbol/s 64-QAM coherent optical transmission over 150 km

Jumpei Hongo, Keisuke Kasai, Masato Yoshida, Masataka Nakazawa

Broadband Engineering Division

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

37 Citations (Scopus)

Abstract

Quadrature amplitude modulation (QAM) is an excellent modulation format for realizing optical communication systems with a high spectral efficiency of much greater than 1 bit/s/Hz. We describe QAM coherent optical communication that we achieved by using heterodyne detection with a frequency- stabilized fiber laser and an optical phase-locked loop (OPLL) technique. The phase error variance of the intermediate frequency signal of the OPLL was 6.1 × 10^-3 rad. A 1-Gsymbol/s 64-QAM coherent signal was successfully transmitted over 150 km.

Original language	English
Pages (from-to)	638-640
Number of pages	3
Journal	IEEE Photonics Technology Letters
Volume	19
Issue number	9
DOIs	https://doi.org/10.1109/LPT.2007.894944
Publication status	Published - 2007 May 1

Keywords

Coherent transmission
Frequency-stabilized laser
Optical phase-locked loop (OPLL)
Quadrature amplitude modulation (QAM)
Spectral efficiency

ASJC Scopus subject areas

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

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10.1109/LPT.2007.894944

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title = "1-Gsymbol/s 64-QAM coherent optical transmission over 150 km",

abstract = "Quadrature amplitude modulation (QAM) is an excellent modulation format for realizing optical communication systems with a high spectral efficiency of much greater than 1 bit/s/Hz. We describe QAM coherent optical communication that we achieved by using heterodyne detection with a frequency- stabilized fiber laser and an optical phase-locked loop (OPLL) technique. The phase error variance of the intermediate frequency signal of the OPLL was 6.1 × 10-3 rad. A 1-Gsymbol/s 64-QAM coherent signal was successfully transmitted over 150 km.",

keywords = "Coherent transmission, Frequency-stabilized laser, Optical phase-locked loop (OPLL), Quadrature amplitude modulation (QAM), Spectral efficiency",

author = "Jumpei Hongo and Keisuke Kasai and Masato Yoshida and Masataka Nakazawa",

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T1 - 1-Gsymbol/s 64-QAM coherent optical transmission over 150 km

AU - Hongo, Jumpei

AU - Kasai, Keisuke

AU - Yoshida, Masato

AU - Nakazawa, Masataka

PY - 2007/5/1

Y1 - 2007/5/1

N2 - Quadrature amplitude modulation (QAM) is an excellent modulation format for realizing optical communication systems with a high spectral efficiency of much greater than 1 bit/s/Hz. We describe QAM coherent optical communication that we achieved by using heterodyne detection with a frequency- stabilized fiber laser and an optical phase-locked loop (OPLL) technique. The phase error variance of the intermediate frequency signal of the OPLL was 6.1 × 10-3 rad. A 1-Gsymbol/s 64-QAM coherent signal was successfully transmitted over 150 km.

AB - Quadrature amplitude modulation (QAM) is an excellent modulation format for realizing optical communication systems with a high spectral efficiency of much greater than 1 bit/s/Hz. We describe QAM coherent optical communication that we achieved by using heterodyne detection with a frequency- stabilized fiber laser and an optical phase-locked loop (OPLL) technique. The phase error variance of the intermediate frequency signal of the OPLL was 6.1 × 10-3 rad. A 1-Gsymbol/s 64-QAM coherent signal was successfully transmitted over 150 km.

KW - Coherent transmission

KW - Frequency-stabilized laser

KW - Optical phase-locked loop (OPLL)

KW - Quadrature amplitude modulation (QAM)

KW - Spectral efficiency

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JF - IEEE Photonics Technology Letters

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ER -

1-Gsymbol/s 64-QAM coherent optical transmission over 150 km

Abstract

Keywords

ASJC Scopus subject areas

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