Waveform distortion in forward-pumped Raman amplifiers with dynamic pump depletion is numerically studied. The RZ-DPSK format, which shows 17 dB higher tolerance than the NRZ format to the forward Raman gain, provides significant flexibility in system design.
© 2003 Optical Society of America
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.2320) Fiber optics and optical communications : Fiber optics amplifiers and oscillators
(060.5060) Fiber optics and optical communications : Phase modulation
(190.0190) Nonlinear optics : Nonlinear optics
(190.4370) Nonlinear optics : Nonlinear optics, fibers
(190.5650) Nonlinear optics : Raman effect
T. Hoshida, S. Choudhary, O. Vassilieva, and H. Kuwahara, "Tolerance of RZ-DPSK signals to pattern effects in Raman amplifier with forward pumping," in Optical Amplifiers and Their Applications, OSA Technical Digest Series (Optical Society of America, 2003), paper MA2.