Presentation 2014-10-30
High-performance TDM demultiplexing of coherent Nyquist pulses using time-domain orthogonality
Koudai HARAKO, David Odeke OTUYA, Keisuke KASAI, Toshihiko HIROOKA, Masataka NAKAZAWA,
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Abstract(in English) We propose a simple and high-performance scheme for demultiplexing coherent Nyquist TDM signals by photo-mixing on a photo-detector with Nyquist LO pulses. This scheme takes advantage of the time-domain orthogonality of Nyquist pulses, which enables high-SNR demultiplexing and homodyne detection simultaneously in spite of a strong overlap with adjacent pulses in the time domain. The feasibility of this scheme is demonstrated through a demultiplexing experiment employing 80 Gbaud, 64 QAM Nyquist pulse OTDM signals. This scheme exhibits excellent demultiplexing performance with a much simpler configuration than a conventional ultrafast all-optical sampling scheme.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Optical Nyquist pulse / Time-domain orthogonality / Digital coherent transmission / QAM / OTDM
Paper # OCS2014-60,OPE2014-104,LQE2014-78
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Conference Information
Committee OCS
Conference Date 2014/10/23(1days)
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Registration To Optical Communication Systems (OCS)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) High-performance TDM demultiplexing of coherent Nyquist pulses using time-domain orthogonality
Sub Title (in English)
Keyword(1) Optical Nyquist pulse
Keyword(2) Time-domain orthogonality
Keyword(3) Digital coherent transmission
Keyword(4) QAM
Keyword(5) OTDM
1st Author's Name Koudai HARAKO
1st Author's Affiliation Research Institute of Electrical Communication, Tohoku University()
2nd Author's Name David Odeke OTUYA
2nd Author's Affiliation Research Institute of Electrical Communication, Tohoku University
3rd Author's Name Keisuke KASAI
3rd Author's Affiliation Research Institute of Electrical Communication, Tohoku University
4th Author's Name Toshihiko HIROOKA
4th Author's Affiliation Research Institute of Electrical Communication, Tohoku University
5th Author's Name Masataka NAKAZAWA
5th Author's Affiliation Research Institute of Electrical Communication, Tohoku University
Date 2014-10-30
Paper # OCS2014-60,OPE2014-104,LQE2014-78
Volume (vol) vol.114
Number (no) 281
Page pp.pp.-
#Pages 4
Date of Issue