Silicon photonics has penetrated intra data center communications, and long distance coherent communications. Silicon-based modulators have limits in performance scaling, and addition of new materials should be considered to silicon processes in order to advance communications technologies, and to enable next generation applications such as microwave signal processing, quantum transduction, quantum communications, and quantum computing. The class of materials known as ferroelectrics (lithium niobate, barium titanate, and others) is identified as promising for all these applications. This workshop seeks to build a community which will solve challenges ranging from materials to high volume fabrication for commercial applications.