We investigated and compared the effect of SOA nonlinearities on 12.5 Gsymbol/s RZ-OOK, RZ-DQPSK, and polarization-bit-interleaved RZ-DQPSK DWDM channels with 20-GHz spacing. Our results showed that polarization-bit-interleaved RZ-DQPSK is overall most tolerant to SOA nonlinearities.
© 2004 Optical Society of America
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.5060) Fiber optics and optical communications : Phase modulation
(250.0250) Optoelectronics : Optoelectronics
(250.5980) Optoelectronics : Semiconductor optical amplifiers
P. S. Cho, Y. Achiam, G. Levy-Yurista, M. Margalit, Y. Gross, and J. B. Khurgin, "Investigation of SOA nonlinearities on the amplification of high spectral efficiency signals," in Optical Fiber Communication Conference, Technical Digest (CD) (Optical Society of America, 2004), paper MF70.
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