System Performance Prediction With the Gaussian Noise Model in 100G PDM-QPSK Coherent Optical Networks

Advanced signaling technologies for high-speed digital fiber-optic links

“…Additionally, optical channel filters and wavelength switches affect the pulse shape; the cascaded behavior of these components is an area of active research [9][10][11][12]. For a detailed description of the exact transmitter see [13]. For the work reported here (Section 3), no special signal processing was utilized to craft specific pulse shapes at the transmitter.…”

“…The number of circulations is limited by the EDFA-induced ASE noise limit and any enhanced nonlinear effects. Extensive transmission results are available in [13,14,27].…”

“…The "Gaussian noise" (GN) model developed by Poggiolini et al [36] has gained substantial prominence due to several extensive experimental studies validating the predictions of the model [13,[43][44][45][46][47]. In [43] the authors experimentally investigate a 33-GHz-spaced PDM-QPSK (30 GBaud) network with three different fiber types: SSMF, NZDSF, and PSCF.…”

“…Additionally, in [47] the authors demonstrate the efficacy of the GN model for a wide range of fibers and Nyquist-WDM 16-QAM channels. Finally, the authors in [13] performed experimental studies for three different fiber types (MDF, SMF, LAF) and two baud rates (28, 32 GHz) for 100 Gb∕s PDM-QPSK transmission.…”

“…The required OSNR to achieve BER 10 −2 for 32 GBaud PDM-QPSK and 32 Gbaud PDM-16QAM is 11.6 and 18.9 dB, respectively. A full characterization of the pulse shape and back-to-back (btb) performance of the transmitter setup is available in [13].…”