  A method for the agile generation of the optical frequencies required for
laser cooling and atom interferometry of rubidium is demonstrated. It relies on
fiber Bragg grating technology to filter the output of an electro-optic
modulator and was demonstrated in a robust, alignment-free, single-seed,
frequency-doubled, telecom fiber laser system. The system was capable of 50 ns
frequency switching over a ~40 GHz range, ~0.5 W output power and amplitude
modulation with a ~15 ns rise/fall time and an extinction ratio of 120 $\pm$ 2
dB. The technology is ideal for enabling high-bandwidth, mobile industrial and
space applications of quantum technologies.
