An optical data system and method are disclosed. The system can be an integrated optical data transmission system that includes an array of lasers that are modulated by a plurality of modulation signals to provide a plurality of sets of optical data signals. Each of the optical data signals in each of the plurality of sets can have a distinct wavelength. The system can also include a wavelength division multiplexing system to combine each of the plurality of sets of optical data signals to generate a plurality of multi-channel optical data signals that are transmitted via a respective plurality of optical transmission media.