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modulation formats without and with PMD compensation," Proc.
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G. Charlet, J. Renaudier, M. Salsi, H. Mardoyan, P. Tran, S. Bigo, "Efficient mitigation of fiber
impairment in an ultra-long haul transmission of 40 Gbit/s polarization-multiplexed
data, by digital processing in a coherent receiver," Proc.
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H. Bülow, "Outage vs PMD tolerance tradeoff for fast polarization scrambling," Proc. ECOC 2006 (2006).

A. Klekamp, B. Junginger, H. Bülow, "Experimental PMD mitigation for 43 Gb/s DPSK by distributed
polarisation scrambling over 4 spans SMF fibre," Proc.
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J. Poirrier, "FEC performance in combination with electronic
dispersion compensation," Proc. OFC/NFOEC (2008).

H. Bülow, F. Buchali, B. Franz, "Enhancement of tolerances in transmission systems by analog
and digital signal processing," Proc. Asia-Pacific
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S. L. Jansen, I. Morita, N. Takeda, H. Tanaka, "20-Gb/s OFDM transmission over 4,160-km SSMF enabled by
RF-pilot tone phase noise compensation," Proc.
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D. McGhan, C. Laperle, A. Savchenko, C. Li, G. Mak, M. O'Sullivan, "5120 km RZ-DPSK transmission over G652 fiber at 10 Gb/s
with no optical dispersion compensation," OFC (2005).

H. Bülow, "Electronic dispersion compensation," Proc.
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B. Franz, F. Buchali, D. Rösener, H. Bülow, "Adaptation
techniques for electronic equalizers for the mitigation of time-variant distortions
in 43 Gbit/s optical transmission systems," Proc.
OFC/NFOEC 2007 (2007) pp. 1-3.

T. Ito, "Suppression of BER fluctuations by electrical equalizer
in the ultra-long 43 Gb/s transmission experiments," Proc.
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P. Poggiolini, G. Bosco, S. Savory, Y. Benlachtar, R. I. Killey, J. Prat, "1,040 km uncompensated IMDD transmission over G.652 fiber
at 10 Gbit/s using a reduced-state SQRT-Metric MLSE receiver," Proc. ECOC (2006).

M. Cavallari, "Electronic signal processing for differential phase modulation
formats," Tech. Dig., OFC'04 (2004).

F. Buchali, "Electronic dispersion compensation for enhanced optical
transmission," Proc. OFC/NFOEC 2006 (2006).

M. S. O'Sullivan, K. Roberts, C. Bontum, "Electronic dispersion compensation techniques for optical
communication systems," Proc. ECOC (2005) pp. 189-190.

S. Tsukamoto, "Coherent demodulation of 40-Gbit/s polarization-multiplexed
QPSK signals with 16-GHz spacing after 200-km transmission," Proc. OFC2005 (2005).

R. Noé, "Phase noise tolerant synchronous QPSK receiver concept with
digital I&Q baseband processing," Proc.
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A. J. Lowery, L. Du, J. Armstrong, "Orthogonal
frequency division multiplexing for adaptive dispersion compensation in long
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J. Poirrier, A. Gnauck, J. Winters, "Experimental nonlinear cancellation of polarization-mode
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H. Bülow, G. Thielecke, "Electronic PMD mitigation – from linear equalization
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H. F. Haunstein, K. Sticht, A. Dittrich, M. Lorang, W. Sauer-Greff, R. Urbansky, "Implementation of near optimum electrical equalization at
10 Gbit/s," Proc. ECOC 2000 (2000) pp. 223-224.

A. Färbert, S. Langenbach, N. Stojanovic, C. Dorschky, T. Kupfer, C. Schulien, J. P. Elbers, H. Wernz, H. Griesser, C. Glingener, "Performance
of a 10.7 Gb/s receiver with digital equalizer using maximum likelihood sequence
estimation," Proc. ECOC (2004).

S. Tsukamoto, Y. Ishikawa, K. Kikuchi, "Optical homodyne receiver comprising phase and polarization
diversities with digital signal processing," Proc.
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A. Leven, N. Kaneda, U.-V. Koc, Y.-K. Chen, "Coherent
receivers for practical optical communication systems," Proc.
OFC/NFOEC 2007 (2007) pp. 1-3.

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 x 111 Gbit/s 50 GHz spaced, POLMUX-RZ-DQPSK
transmission over 2375 km employing coherent equalization," Proc. OFC/NFOEC 2007 (2007) pp. 1-3.

C. Laperle, B. Villeneuve, Z. Zhang, D. McGhan, H. Sun, M. O'Sullivan, "Wavelength division mulitplexing (WDM) and polarization
mode dispersion (PMD) performance of a coherent 40 Gbit/s dual-polarization
quadrature phase shift keying (DP-QPSK) transceiver," Proc.
OFC/NFOEC 2007 (2007).

S. J. Savory, A. D. Stewart, S. Wood, G. Gavioli, M. G. Taylor, R. I. Killey, P. Bayvel, "Digital
equalization of 40 Gbit/s per wavelength transmission over 2480 km of standard
fibre without optical dispersion compensation," Proc.
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S. J. Savory, G. Gavioli, R. I. Killey, P. Bayvel, "Transmission of 42.8 Gbit/s polarization multiplexed NRZ-QPSK
over 6400 km of standard fiber with no optical dispersion compensation," Proc. OFC/NFOEC 2007 (2007).

A. J. Lowery, J. Armstrong, "Orthogonal-frequency-division multiplexing for optical dispersion
compensation," Proc. OFC/NFOEC 2007 (2007).

W. Shieh, X. Yi, Y. Ma, Y. Tang, "PMD-supported transmission assisted by polarization-diversity
detection and coherent optical OFDM signal processing," Proc.
OECC/IOOC 2007 (2007).

R. I. Killey, P. M. Watts, M. Glick, P. Bayvel, "Electronic
dispersion compensation by signal predistortion," Proc.
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G. Goeger, "Modulation format with enhanced SMP-Rbustness for electronically
predistorted transmission," Proc. ECOC 2006 (2006).

D. Breuer, "Measurements of PMD in the installed fiber plant of deutsche
telekom," LEOS Summer Topical (2003) pp. MB2.1/5-MB2.1/6.

J. Zhao, L.-K. Chen, C.-K. Chan, "Maximum
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dispersion compensation in 3-Chip DPSK modulation format," Proc. OFC/NFOEC 2007 (2007).

T. Schorr, W. Sauer-Greff, R. Urbansky, H. Haunstein, A. Zottmann, "Performance and complexity of iterative equalization for
FEC systems in optical PMD channels," Proc.
ECOC 2006 (2006).

I. B. Djordjevic, B. Vasic, "Adaptive BCJR equalizer in suppression of intrachannel nonlinearities," Proc. ECOC 2006 (2006).

A. Klekamp, F. Buchali, M. Audoin, H. Bülow, "Nonlinear limitations of electronic dispersion precompensation
by intrachannel effects," Tech. Dig. OFC 2006 (2006).

M. Birk, X. Zhou, M. Boroditsky, S. H. Foo, D. Bownass, M. Moyer, M. O'Sullivan, "WDM technical trial with complete electronic
dispersion compensation," Proc. ECOC 2006 (2006).

G. Charlet, N. Maaref, J. Renaudier, H. Mardoyan, P. Tran, S. Bigo, "Transmission
of 40 Gb/s QPSK with coherent detection over ultra-long distance improved
by nonlinearity mitigation," ECOC (2006).