We present a new enhanced receiver for noise degraded RZ-DPSK signals. A highly saturated SOA and a detuned filter are used. An error free detection for an 8x10<sup>-6</sup>input BER is demonstrated.
© 2010 IEEE Communications Society, IEEE Photonics Society, OSA, Telcordia
(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
H. M. Chaouch, E. R. Parsons, and F. Kueppers, "BER Improvement for RZ-DPSK Receivers Using Saturated Asymmetric Filtering," in Optical Fiber Communication Conference, OSA Technical Digest (CD) (Optical Society of America, 2010), paper OTuN2.