Prince Anandarajah is a trailblazer in the generation, characterisation and application of optical frequency combs (OFCs). 

Anandarajah has spearheaded work on gain switching to generate flexible OFCs. Themes he has explored have included direct modulation techniques for cost-efficient transmission, short optical pulse generation, radio-over-fibre systems, fibre to the home (FTTH) technologies, pulse characterisation, advanced modulation formats, optical packet switched networks, and all-optical signal processing.