Abstract :
Obtaining high power budgets by combating self phase modulation (SPM) induced distortion by system design is of great importance in long nonrepeatered standard fibre transmission systems. Among the important design considerations is the choice of dispersion compensation scheme and modulation format. The optimum modulation format may be return-to-zero (RZ) or nonreturn-to-zero (NRZ), binary or duobinary. Dispersion compensating schemes includes, precompensation, postcompensation, a combination thereof, as well as the degree of compensation: overcompensation, 100% compensation, and undercompensation. Most numerical studies on this topic has limited the analysis to either fixing the bitrate, modulation format, or the dispersion compensation scheme. In this paper we demonstrates numerically how the systems ability to combat SPM depends on all these three parameters. Hence optimum design rules are found, allowing to maximise transmission length, and system margin
Keywords :
optical fibre communication; optical fibre dispersion; optical modulation; self-phase modulation; NRZ signal; RZ signal; binary signal; bitrate; design; dispersion compensation; distortion; duobinary signal; long nonrepeatered standard fibre transmission; modulation format; self phase modulation; Bit rate; Chirp; Nonlinear distortion; Optical fiber polarization; Optical receivers; Optical signal processing; Optical transmitters; Phase modulation; Polarization mode dispersion; Scanning probe microscopy;
