60 Gbit/s, 64 QAM LD-based injection-locked coherent heterodyne transmission over 160km with a spectral efficiency of 9 bit/s/Hz

Yixin Wang; Keisuke Kasai; Masato Yoshida; Masataka Nakazawa

doi:10.1587/elex.11.20140641

60 Gbit/s, 64 QAM LD-based injection-locked coherent heterodyne transmission over 160km with a spectral efficiency of 9 bit/s/Hz

Yixin Wang, Keisuke Kasai, Masato Yoshida, Masataka Nakazawa

Broadband Engineering Division

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

Abstract

We report an injection-locked 60 Gbit/s 64 QAM coherent transmission employing a laser diode (LD) based heterodyne demodulation circuit. The LDs for the transmitter and receiver were InP-based external cavity laser diodes (ECLDs) emitting at 1538.8 nm. By using an injection locking technique with locking range of 100 MHz, we achieved low phase noise carrier synchronization between the data and the local oscillator with a phase noise of 0.3 deg. As a result, a polarization-multiplexed 64 QAM data signal was successfully transmitted over 160km with a spectral efficiency of 9 bit/s/Hz.

Original language	English
Article number	20140641
Journal	IEICE Electronics Express
Volume	11
Issue number	18
DOIs	https://doi.org/10.1587/elex.11.20140641
Publication status	Published - 2014 Sept 5

Keywords

Coherent transmission
Heterodyne demodulation
Injection locking
Semiconductor laser

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1587/elex.11.20140641

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title = "60 Gbit/s, 64 QAM LD-based injection-locked coherent heterodyne transmission over 160km with a spectral efficiency of 9 bit/s/Hz",

abstract = "We report an injection-locked 60 Gbit/s 64 QAM coherent transmission employing a laser diode (LD) based heterodyne demodulation circuit. The LDs for the transmitter and receiver were InP-based external cavity laser diodes (ECLDs) emitting at 1538.8 nm. By using an injection locking technique with locking range of 100 MHz, we achieved low phase noise carrier synchronization between the data and the local oscillator with a phase noise of 0.3 deg. As a result, a polarization-multiplexed 64 QAM data signal was successfully transmitted over 160km with a spectral efficiency of 9 bit/s/Hz.",

keywords = "Coherent transmission, Heterodyne demodulation, Injection locking, Semiconductor laser",

author = "Yixin Wang and Keisuke Kasai and Masato Yoshida and Masataka Nakazawa",

note = "Publisher Copyright: {\textcopyright} IEICE 2014.",

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doi = "10.1587/elex.11.20140641",

language = "English",

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T1 - 60 Gbit/s, 64 QAM LD-based injection-locked coherent heterodyne transmission over 160km with a spectral efficiency of 9 bit/s/Hz

AU - Wang, Yixin

AU - Kasai, Keisuke

AU - Yoshida, Masato

AU - Nakazawa, Masataka

N1 - Publisher Copyright: © IEICE 2014.

PY - 2014/9/5

Y1 - 2014/9/5

N2 - We report an injection-locked 60 Gbit/s 64 QAM coherent transmission employing a laser diode (LD) based heterodyne demodulation circuit. The LDs for the transmitter and receiver were InP-based external cavity laser diodes (ECLDs) emitting at 1538.8 nm. By using an injection locking technique with locking range of 100 MHz, we achieved low phase noise carrier synchronization between the data and the local oscillator with a phase noise of 0.3 deg. As a result, a polarization-multiplexed 64 QAM data signal was successfully transmitted over 160km with a spectral efficiency of 9 bit/s/Hz.

AB - We report an injection-locked 60 Gbit/s 64 QAM coherent transmission employing a laser diode (LD) based heterodyne demodulation circuit. The LDs for the transmitter and receiver were InP-based external cavity laser diodes (ECLDs) emitting at 1538.8 nm. By using an injection locking technique with locking range of 100 MHz, we achieved low phase noise carrier synchronization between the data and the local oscillator with a phase noise of 0.3 deg. As a result, a polarization-multiplexed 64 QAM data signal was successfully transmitted over 160km with a spectral efficiency of 9 bit/s/Hz.

KW - Coherent transmission

KW - Heterodyne demodulation

KW - Injection locking

KW - Semiconductor laser

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60 Gbit/s, 64 QAM LD-based injection-locked coherent heterodyne transmission over 160km with a spectral efficiency of 9 bit/s/Hz

Abstract

Keywords

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