| This thesis evaluates several alternative transmission formats to determine their potential for different types of WDM fiber systems. The research contributions involve four different parts: (1) construction of a new simulation software package that accurately models the optical fiber. Various nonlinear effects and chromatic dispersion modeling were incorporated into the new software; (2) comparison of the duobinary and OSSB transmission formats with the commonly used NRZ OOK format; (3) examination of the compatibility of different SSB formats with the duobinary format, for the possibility of combining the OSSB and duobinary formats; (4) comparison of the performance of three different alternative RZ formats, namely, bipolar RZ (BP-RZ), duobinary RZ (D-RZ) and modified duobinary RZ (MD-RZ), with the commonly used RZ format. |
