Simultaneous All-Optical Demultiplexing of a 40-Gb/s Signal to 4X10 Gb/s WDM Channels Using an Ultrafast Fiber Wavelength Converter Read more about Simultaneous All-Optical Demultiplexing of a 40-Gb/s Signal to 4X10 Gb/s WDM Channels Using an Ultrafast Fiber Wavelength Converter