The Optiwave Corp. has developed a software program that allows users to design and model phased-array WDMs. Dubbed WDM_Phasar, the package allows the designer to lay out and edit an entire WDM with flexibility. The parameters of the device geometry can be set, and can be scanned automatically into numerical simulations. A set of phased-array templates enables design and optimization of a phased array in seconds, according to the company. A Wizard tool guides the user through the process with user-defined performance requirements, and another set of tools can estimate performance parameters such as crosstalk level, bend losses and dispersion. Beam propagation algorithms can perform advanced simulation.