Ultra high-speed optical time-division-multiplexed (OTDM) transmission technologies are essential for the construction of ultra high-speed all-optical networks needed in the information era. In this Ph.D thesis, essential mechanisms associated with ultra high-speed OTDM transmission system, such as, high speed ultra short pulse generation, all optical demultiplexing and add/drop multiplexing, and all-optical logic have been studied. Both experimental demonstration and numerical simulation have been performed