1.14 b/s/Hz spectrally-efficient 50/spl times/85.4 Gb/s transmission over 300 km using copolarized CS-RZ DQPSK signals

1.14 b/s/Hz spectrally-efficient 50/spl times/85.4 Gb/s transmission over 300 km (75 km/spl times/4 spans) of NZ-DSF has been successfully demonstrated with copolarized CS-RZ DQPSK signals. 42.7 Gsymbol/s-based 4 Tb/s DQPSK transmission has been achieved for the first time without polarization multiplexing.

[1]  B. Lankl,et al.  High spectral efficiency 1.6-b/s/Hz transmission (8 x 40 Gb/s with a 25-GHz grid) over 200-km SSMF using RZ-DQPSK and polarization multiplexing , 2003, IEEE Photonics Technology Letters.

[2]  Alexei N. Pilipetskii,et al.  Polarization tracking receiver demonstration over transoceanic distance , 2003, OFC 2003 Optical Fiber Communications Conference, 2003..

[3]  Takehiro Tsuritani,et al.  21.4 Gbit/s /spl times/ 56 WDM 9170 km transmission using symmetrically dispersion-managed fibre span , 2001, Proceedings 27th European Conference on Optical Communication (Cat. No.01TH8551).

[4]  C. Wree,et al.  CF-RZ-DPSK for suppression of XPM on dispersion-managed long-haul optical WDM transmission on standard single-mode fiber , 2002, IEEE Photonics Technology Letters.

[5]  A. Sano,et al.  320 Gbit/s (8/spl times/40 Gbit/s) WDM transmission over 367 km with 120 km repeater spacing using carrier-suppressed return-to-zero format , 1999 .

[6]  G. Raybon,et al.  25 x 40-Gb/s copolarized DPSK transmission over 12 x 100-km NZDF with 50-GHz channel spacing , 2003, IEEE Photonics Technology Letters.

[7]  Xiang Liu,et al.  Comparison of return-to-zero differential phase-shift keying and ON-OFF keying in long-haul dispersion managed transmission , 2003, IEEE Photonics Technology Letters.

[8]  J. Khurgin,et al.  Investigation of 2-b/s/Hz 40-gb/s DWDM transmission over 4/spl times/100 km SMF-28 fiber using RZ-DQPSK and polarization multiplexing , 2004, IEEE Photonics Technology Letters.

[9]  S. Bigo,et al.  Cost-optimized 6.3 Tbit/s-capacity terrestrial link over 17 /spl times/ 100 km using phase-shaped binary transmission in a conventional all-EDFA SMF-based system , 2003, OFC 2003 Optical Fiber Communications Conference, 2003..

[10]  T. Chikama,et al.  Modulation and demodulation techniques in optical heterodyne PSK transmission systems , 1990 .

[11]  Y. Achiam,et al.  Transmission of 25-Gb/s RZ-DQPSK signals with 25-GHz channel spacing over 1000 km of SMF-28 fiber , 2003, IEEE Photonics Technology Letters.

[12]  S. Bigo,et al.  WDM transmission at 6-Tbit/s capacity over transatlantic distance, using 42.7-Gb/s differential phase-shift keying without pulse carver , 2005, Journal of Lightwave Technology.

[13]  Robert A. Griffin,et al.  Optical differential quadrature phase-shift key (oDQPSK) for high capacity optical transmission , 2002, Optical Fiber Communication Conference and Exhibit.

[14]  K. Motoshima,et al.  Transmission of 20/spl times/20 Gb/s RZ-DQPSK signals over 5090 km with 0.53 b/s/Hz spectral efficiency , 2004, Optical Fiber Communication Conference, 2004. OFC 2004.

[15]  R. Feced,et al.  1.6 bit/s/Hz orthogonally polarized CSRZ-DQPSK transmission of 8/spl times/40 Gbit/s over 320 km NDSF , 2004, Optical Fiber Communication Conference, 2004. OFC 2004.

[16]  Hoon Kim,et al.  Transmission of 8 x 20 Gb/s DQPSK signals over 310-km SMF with 0.8-b/s/Hz spectral efficiency , 2003, IEEE Photonics Technology Letters.

[17]  Katsumi Emura,et al.  Feasibility study on QPSK optical-heterodyne detection system , 1990 .

[18]  P. J. Winzer,et al.  Sensitivity enhancement of optical receivers by impulsive coding , 1999 .

[19]  Katsumi Emura,et al.  Feasibility study on over 1 bit/s/Hz high spectral efficiency WDM with optical duobinary coding and polarization interleave multiplexing , 1997, Proceedings of Optical Fiber Communication Conference (.

[20]  W. Idler,et al.  10.2 Tbit/s (256x42.7 Gbit/s PDM/WDM) transmission over 100 km TeraLight/sup TM/ fiber with 1.28 bit/s/Hz spectral efficiency , 2001, OFC 2001. Optical Fiber Communication Conference and Exhibit. Technical Digest Postconference Edition (IEEE Cat. 01CH37171).