Presentation 2015-11-12
A study on roll-off factor of Nyquist-PAM4 optical signaling using transmission simulation and estimation of DSP circuit size
Riu Hirai, Nobuhiko Kikuchi,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Nyquist spectral shaping is an attractive technique to generate high-speed signals in using band-limited devices, however it is well-known that decrease of roll-off factor for reduction of its signal bandwidth greatly impacts on not only its performance such as optical modulation amplitude but also circuit size of digital signal processing (DSP). In this paper, we numerically investigate the relationship between roll-off factor and transmission performance using optical PAM4 (Pulse Amplitude Modulation) transceiver with/without Nyquist spectral shaping. In addition, we show estimation of DSP circuit in Nyquist-PAM4 transceiver using roll-off factor 0.1 and confirm the possibility to implement on a compact transceiver.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Optical fiber communication / Nyquist spectral shaping / Multilevel modulation / Digital signal processing
Paper # OCS2015-82
Date of Issue 2015-11-05 (OCS)

Conference Information
Committee OCS / OFT / IEE-CMN / ITE-BCT
Conference Date 2015/11/12(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Matsuyama Civic Center
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Kiyoshi Fukuchi(NEC) / Hiroshi Naruse(Mie Univ.) / Masahiro Muraguchi(Tokyo Univ. of Science) / Tomoaki Ohtsuki(Keio Univ.)
Vice Chair Akira Hirano(NTT) / / / Naohiko Iai(NHK)
Secretary Akira Hirano(Fujikura) / (NTT) / (NTT) / Naohiko Iai(Fujikura)
Assistant / Terutake Kobayashi(Fujikura) / Hidenobu Hirota(NTT) / Keisuke Utsu(Tokai Univ.)

Paper Information
Registration To Technical Committee on Optical Communication Systems / Technical Committee on Optical Fiber Technology / Technical Meeting on Communications / Technical Group on Broadcasting Technology
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A study on roll-off factor of Nyquist-PAM4 optical signaling using transmission simulation and estimation of DSP circuit size
Sub Title (in English)
Keyword(1) Optical fiber communication
Keyword(2) Nyquist spectral shaping
Keyword(3) Multilevel modulation
Keyword(4) Digital signal processing
1st Author's Name Riu Hirai
1st Author's Affiliation Hitachi, Ltd.(Hitachi)
2nd Author's Name Nobuhiko Kikuchi
2nd Author's Affiliation Hitachi, Ltd.(Hitachi)
Date 2015-11-12
Paper # OCS2015-82
Volume (vol) vol.115
Number (no) OCS-305
Page pp.pp.7-12(OCS),
#Pages 6
Date of Issue 2015-11-05 (OCS)