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S. Blinnikov, G. Moessner, "Expansions for nearly Gaussian distributions," Astron. Astrophys. Suppl. Ser. 193-205 (1998).

L. Hassine, Z. Toffano, F. Lamnabhi-Lagarrigue, A. Destrez, I. Joindot, "Volterra functional series
expansions for noise in semiconductor lasers," IEEE
J. Quantum Electron. 30, 2534-2546 (1994).

N. G. Jensen, E. Bodtker, G. Jacobsen, J. Strandberg, "Performance of preamplified direct detection
systems under influence of receiver noise," IEEE
Photon. Technol. Lett. 6, 1488-1490 (1994).

W. Jin, J. M. Kahn, "Conventional DPSK versus symmetrical DPSK: Comparison of
dispersion tolerances," IEEE Photon. Technol.
Lett. 16, 1585-1587 (2004).

T. K. Biswas, W. F. McGee, "Volterra series analysis of semiconductor
laser diode," IEEE Photon. Technol. Lett. 3, 706-708 (1991).

P. J. Winzer, K. Hoon, "Degradations in balanced DPSK receivers," IEEE Photon. Technol. Lett. 15, 1282-1284 (2003).

R. Holzlohner, W. L. Kath, C. R. Menyuk, V. S. Grigoryan, "Efficient and accurate computation of eye
diagrams and bit-error rates in a single-channel CRZ system," IEEE Photon. Technol. Lett. 14, 1079-1081 (2002).

J. C. Froidure, C. Lebrun, P. Megret, E. Jaunart, P. Goerg, T. Tasia, M. Lamquin, M. Blondel, "Theoretical
and experimental study of second-order distortions in CATV DFB laser diodes," IEEE Photon. Technol. Lett. 7, 266-268 (1995).

F. Yuan, A. Opal, "Distortion analysis of periodically switched nonlinear circuits
using time-varying Volterra series," IEEE Trans.
Circuits Syst. I, Fundam. Theory Appl. 48, 726-738 (2001).

T. Ching-Hsiang, "A mixed-domain method for identification
of quadratically nonlinear systems," IEEE Trans.
Signal Process. 45, 1013-1024 (1997).

M. Nazarathy, "Accurate evaluation of bit error rates of
optical communication systems using the Gram-Charlier series," IEEE Trans. Commun. 54, 295-301 (2006).

C. W. Helstrom, "Distribution of the filtered output of a
quadratic rectifier computed by numerical contour integration," IEEE Trans. Inf. Theory IT-32, 450-463 (1986).

X. Chunmin, R. Werner, "Nonlinear electrical equalization for different
modulation formats with optical filtering," J.
Lightw. Technol. 25, 996-1001 (2007).

S. L. Danielsen, B. Mikkelesen, T. Durhuus, C. Joergensen, K. E. Stubkjaer, "Detailed noise statistics for an optically
preamplified direct detection receiver," J.
Lightw. Technol. 13, 977-981 (1995).

C. Lawetz, J. C. Cartledge, "Performance of optically preamplified receivers
with Fabry-Perot optical filters," J. Lightw.
Technol. 14, 2467-2474 (1996).

E. Forestieri, M. Secondini, "On the error probability evaluation in lightwave
systems with optical amplification," J. Lightw.
Technol. .

J. Wang, J. M. Kahn, "Impact of chromatic and polarization-mode dispersion on
DPSK systems using interferometric demodulation and direct detection," J. Lightw. Technol 22, 362-371 (2004).

M. Nazarathy, W. V. Sorin, D. M. Baney, S. A. Newton, "Spectral analysis of optical mixing measurements," J. Lightw. Technol. 7, 1083-1096 (1989).

I. T. Monroy, G. Einarsson, "Bit error evaluation of optically preamplified
direct detection receivers with Fabry-Perot optical filters," J. Lightw. Technol. 15, 1546-1553 (1997).

E. Forestieri, "Evaluating the error probability in lightwave
systems with chromatic dispersion, arbitrary pulse shape and pre- and postdetection
filtering," J. Lightw. Technol. 18, 1493-1503 (2000).

K. V. Peddanarappagari, M. Brandt-Pearce, "Volterra series transfer function
of single-mode fibers," J. Lightw. Technol. 15, 2232-2241 (1997).

L. F. B. Ribeiro, J. R. F. Da Rocha, J. L. Pinto, "Performance evaluation of EDFA
preamplified receivers taking into account intersymbol interference," J. Lightw. Technol. 13, 225-232 (1995).

N. A. Olsson, "Lightwave systems with optical amplifiers," J. Lightw. Technol. 7, 1071-1082 (1989).

D. Marcuse, "Derivation of analytical expressions for
the bit-error probability in lightwave systems with optical amplifiers," J. Lightw. Technol. 8, 1816-1823 (1990).

O. K. Tonguz, L. G. Kazovsky, "Theory of direct-detection lightwave receivers
using optical amplifiers," J. Lightw. Technol. 9, 174-181 (1991).

D. Marcuse, "Calculation of bit-error probability for
a lightwave system with optical amplifiers and post-detection Gaussian noise," J. Lightw. Technol. 9, 505-513 (1991).

P. A. Humblet, M. Azizoglu, "On the bit error rate of lightwave systems
with optical amplifiers," J. Lightw. Technol. 9, 1576-1582 (1991).

J.-S. Lee, C.-S. Shim, "Bit-error-rate analysis of optically preamplified
receivers using an eigenfunction expansion method in optical frequency domain," J. Lightw. Technol. 12, 1224-1229 (1994).

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