Patent ID: 6711313
Filing Date: 2004-03-23
Classification: G02B,H04J

Abstract:
A CDMA encoder-decoder comprising:a first arrayed-waveguide grating having a plurality of input and output parts, and inputting and outputting a signal; a first matrix optical switch having a plurality of input and output parts, the input parts being connected to the output parts of said first arrayed-waveguide grating; a plurality of delay lines of which ends are connected to the output parts of said first matrix optical switch and of which lengths are different from each other; a second matrix optical switch having a plurality of input and output parts, the input parts being connected to the other ends of said plurality of delay lines; and a second arrayed-waveguide grating having a plurality of input and output parts, the input parts being connected to the output parts of said second matrix optical switch, and the output parts outputting the signal.