Optical demultiplexing using semiconductor optical amplifiers
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All-optical demultiplexing of a 40 Gb/s signal to four channels at 10 Gb/s each has been successfully demonstrated using optical four-wave mixing in a travelling wave semiconductor optical amplifier. It is also expected that any set of data bits up to 1 Tbit/s can be retrieved using the four-wave mixing process.
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[2] P. Spano,et al. Wavelength conversion at 10 Gb/s by four-wave mixing over a 30-nm interval , 1998, IEEE Photonics Technology Letters.