G. Charlet, J. Renaudier, M. Salsi, H. Mardoyan, P. Tran, S. Bigo, "Efficient mitigation of fiber
impairments in an ultra-long haul transmission of 40 Gbit/s polarization-multiplexed
data by digital processing in a coherent receiver," Proc.
OFC2007 (2007).

K. Schuh, B. Junginger, E. Lach, G. Veith, "1 Tb/s (10$\,\times\,$107 Gb/s ETDM) serial NRZ transmission over 480 km SSMF," Proc. OFC2007 (2007).

S. L. Jansen, R. H. Derksen, C. Schubert, X. Zhou, M. Birk, C.-J. Weiske, M. Bohn, D. van den Borne, P. M. Krummrich, M. Möller, F. Horst, B. J. Offrein, H. de Waardt, G. D. Khoe, A. Kirstädter, "107-Gb/s full-ETDM transmission
over field installed fiber using vestigial sideband modulation," Proc. OFC2007 (2007).

K. Schuh, E. Lach, B. Junginger, A. Klekamp, G. Veith, "8$\,\times\,$107 Gbit/s serial binary NRZ/VSB transmission over 480 km SSMF with
1 bit/s/Hz spectral efficiency and without optical equalizer," Proc. ECOC2007 (2007).

P. J. Winzer, G. Raybon, S. Chandrasekhar, C. D. Doerr, T. Kawanishi, T. Sakamoto, K. Higuma, "10$\,\times\,$107 Gb/s
NRZ-DQPSK transmission at 1.0 b/s/Hz over 12$\,\times\,$100 km including 6 optical
routing nodes," Proc. OFC2007 (2007).

H. Masuda, A. Sano, T. Kobayashi, E. Yoshida, Y. Miyamoto, Y. Hibino, K. Hagimoto, T. Yamada, T. Furuta, H. Fukuyama, "20.4 Tb/s (204$\,\times\,$111 Gb/s) transmission over
240 km using bandwidth-maximized hybrid Raman/EDFAs," Proc.
OFC2007 (2007).

P. J. Winzer, G. Raybon, C. R. Doerr, L. L. Buhl, T. Kawanishi, T. Sakamoto, M. Izutsu, K. Higuma, "2000-km WDM transmission of 10$\,\times\,$107-Gb/s RZ-DQPSK," ECOC2006 (2006).

X. Zhou, J. Yu, M. Du, G. Zhang, "2 Tb/s (20$\,\times\,$107 Gb/s) RZ-DQPSK straight-line transmission over 1005 km of standard
single mode fiber (SSMF) without Raman amplification," Proc.
OFC2008 (2008).

A. H. Gnauck, P. J. Winzer, L. L. Buhl, T. Kawanishi, T. Sakamoto, M. Izutsu, K. Higuma, "12.3-Tb/s C-band DQPSK transmission
at 3.2 b/s/Hz spectral efficiency," Proc. ECOC
2006 .

S. Chandrasekhar, X. Liu, E. C. Burrowa, L. L. Buhl, "Hybrid
107 Gb/s polarization-multiplexed DQPSK and 42.7-Gb/s DQPSK transmission at
1.4-bits/Hz spectral efficiency over 1280 km of SSMF and 4 bandwidth-managed
ROADMs," Proc. ECOC2007 (2007).

C. R. S. Fludger, T. Duthel, D. Van den Borne, C. Schulien, E. D. Schmidt, T. Wuth, E. De Man, G. D. Khoe, H. de Waardt, "10$\,\times\,$111 Gb/s,
50 GHz spaced, POLMUX-RZ-DQPSK transmission over 2375 employing coherent equalization," Proc. OFC2007 (2007).

G. Charlet, J. Renaudier, H. Mardoyan, P. Tran, O. B. Pardo, F. Verluise, M. Achouche, A. Boutin, F. Blache, J. Dupuy, S. Bigo, "Transmission
of 16.4 Tbit/s Capacity over 2550 km using PDM QPSK modulation format and
coherent receiver," Proc. OFC2008 (2008).

A. Sano, H. Masuda, E. Yoshida, T. Kobayashi, E. Yamada, Y. Miyamoto, "30$\,\times\,$100 Gb/s all-optical OFDM
transmisión over 1300 km SMF with 10 ROADM nodes," Proc. ECOC2007 (2007).

S. L. Jansen, I. Morita, H. Tanaka, "10$\,\times\,$121.9-Gb/s PDM-OFDM transmission
with 2-b/s/Hz spectral efficiency over 1000 km of SSMF," Proc. OFC2008 (2008).

M. Nakazawa, J. Hongo, K. Kasai, M. Yoshida, "Polarization-multiplexed
1 Gsymbol/s 64Q AM (12 Gb/s) coherent optical transmission over 150 km with
an optical bandwidth of 2 GHz," Proc. OFC2007 (2007).

M. Seimetz, L. Molle, D.-D. Gross, B. Auth, R. Freund, "Coherent RZ-8PSK transmission
at 30 Gb/s over 1200 km employing Homodyne detection with digital carrier
phase estimation," Proc. ECOC2007 (2007).

S. J. Savory, V. Mikhailov, R. I. Killey, P. Bayvel, "Digital coherent receivers for uncompensated
42.8 Gbit/s transmission over high PMD fibre," Proc.
ECOC2007 (2007).