We propose a conceptual transmultiplexer of all optical WDM to OTDM for the future soliton WDM/OTDM network system.The main modulars are semiconductor optical amplifier (SOA) based on cross gain compression that can perform wavelength conversion
synchronous and time delay modular
and optical time division multiplexer modular.The transmultiplexer is a key building block for all optical WDM/OTDM networks.