  We present a Dual Isotope Magneto Optical Trap produced using a single diode
laser. We generate all the optical frequencies needed for trapping both species
using a fiber intensity modulator. All the optical frequencies are amplified
simultaneously using a tapered amplifier. The independent control of each
frequency is on the RF side rather than on the optical side. This introduces an
enormous simplification for laser cooling applications that often require an
acousto-optic modulator for each laser beam. Frequency changing capabilities
are limited by the modulator bandwidth (10 GHz). Traps for more isotopes can be
simply added by including additional RF frequencies to the modulator.
