Digital Fiber-Optic Link Simulation Development

This proposal focuses on the development of fiber-optic link simulation software with a graphical user interface (GUI) to perform link analysis as described in ANSI/TIA/EIA-626-1995. In particular, the simulations will incorporate detailed physics based models for the fiber-optic components to simulate the loss, distortion, jitter, and noise characteristics of the links. The final simulation will be able to display time-domain signals at user selected points in the link, the eye pattern, optical source power versus drive current, and the bit error ratio for the link. The uniqueness of Toyon's Research Corporation's approach is that we will rely on or experience developing analog photonic simulations and use our existing analog link analysis tool, PHLASH¿, as a starting point in this development. The resulting software will be referred to as PHLASH-Digital Version¿ (PHLASH-DV¿) and will be a PC-Windows simulation written using C++, and utilizing an object-oriented style of programming. In addition, Toyon will modify and add to the existing PHLASH¿ models to add a digital link analysis capability. We will optionally investigate the possibility of folding our optimization capabilities into the PHLASH-DV¿ code to allow the optimization of selected components and their parameter values to achieve the specified system requirements.