Fiber optic data links for high bandwidth reaction history measurements have been improved by testing individual components and working closely with vendors. The work presented in this report represents collaborative work between Special Technologies Laboratory, Los Alamos National Laboratory, and Lawrence Livermore National Laboratory. We present data on testpulse synthesis for system evaluation, component improvements and electromagnetic pulse testing. In addition, we report on a variety of developmental recording techniques that potentially extend bandwidth beyond 12 GHz or improve dynamic range using existing 12 GHz digitizers.