@inproceedings{c8790cfa1cbc43d0872a825641cf733c,
title = "20-Gb/s QPSK transmission over 10-km-long holey fiber using a wavelength tunable quantum dot light source in O-band",
abstract = "We successfully demonstrate 20-Gb/s quadrature phase-shift keying (QPSK) signal transmission. The transmission was carried out over endlessly single-mode holey fiber in the waveband of 1276.02-1304.26 nm, whose bandwidth of 5.09- THz is broader than the traditional C-band. A wavelength-tunable quantum dot (QD) laser with broad wavelength tunability helps realize bandwidth availability. A single InAs/InGaAs QD optical gainchip was grown using a sandwiched sub-nanometer separator technique in the wavelength of 1.3-μm band. Using this gain chip, the QD light source has good wavelength stability, compactness and wavelength tunablility. The measured transmission results show bit error rates within a forward error correction limit of 2×10-3 using intradyne coherent detection with offline digital signal processing. In this study, it is expected that abundant frequency resources such as the O-band are coherently enhanced by the use of a large number of wavelength channels by effectively using the QD- laser.",
keywords = "Holey fiber, Optical communication, Optical transmission system, Quadrature phase-shift keying (QPSK), Quantum dot",
author = "Akihiro Murano and Fumiya Yagi and Naokatsu Yamamoto and Atsushi Kanno and Tetsuya Kawanishi and Hideyuki Sotobayashi",
year = "2015",
month = jan,
day = "1",
doi = "10.1117/12.2078118",
language = "English",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Srivastava, {Atul K.} and Dingel, {Benjamin B.} and Dutta, {Achyut K.}",
booktitle = "Optical Metro Networks and Short-Haul Systems VII",
note = "Optical Metro Networks and Short-Haul Systems VII ; Conference date: 10-02-2015 Through 12-02-2015",
}