90Gbaud NRZ-DP-DQPSK Modulation with Full-ETDM Technique Using High-Speed Optical IQ Modulator

We demonstrate high baud-rate DQPSK modulation with full-ETDM technique using a novel high-speed optical IQ modulator consisting of a ridge-type optical waveguide structure on a thin LiNbO3 substrate. Our fabrication technique achieves a drastic extension of the modulator's bandwidth and a redu...

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Veröffentlicht in:	IEICE Transactions on Electronics 2011/07/01, Vol.E94.C(7), pp.1179-1186
Hauptverfasser:	KANNO, Atsushi, SAKAMOTO, Takahide, CHIBA, Akito, SUDO, Masaaki, HIGUMA, Kaoru, ICHIKAWA, Junichiro, KAWANISHI, Tetsuya
Format:	Artikel
Sprache:	eng
Schlagworte:	electrically time-division multiplexing optical IQ modulator quadrature phase shift keying Ti:LiNbO3 optical modulator
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Beschreibung
Zusammenfassung:	We demonstrate high baud-rate DQPSK modulation with full-ETDM technique using a novel high-speed optical IQ modulator consisting of a ridge-type optical waveguide structure on a thin LiNbO3 substrate. Our fabrication technique achieves a drastic extension of the modulator's bandwidth and a reduction of half-wave voltage. Demonstration of 90-Gbaud NRZ-DP-DQPSK signal generation with the modulator successfully achieved a bit rate of 360-Gb/s under full-ETDM configuration.
ISSN:	0916-8524 1745-1353
DOI:	10.1587/transele.E94.C.1179