  A prototype 425-850 MHz Radio-Frequency-over-Fiber (RFoF) link for the
Canadian Hydrogen Intensity Mapping Experiment (CHIME) is presented. The design
is based on a directly modulated Fabry-Perot (FP) laser, operating at ambient
temperature, and a single-mode fiber. The dynamic performance, gain stability,
and phase stability of the RFoF link are characterized. Tests on a two-element
interferometer built at the Dominion Radio Astrophysical Observatory for CHIME
prototyping demonstrate that RFoF can be successfully used as a cost-effective
solution for analog signal transport on the CHIME telescope and other
large-array radio astronomy applications
