Title :
Wavelength-time spreading optical CDMA system using wavelength multiplexers and mirrored fiber delay lines
Author :
Yu, Kyoungsik ; Shin, Jongyoon ; Park, Namkyoo
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Stanford Univ., CA, USA
Abstract :
We propose a two-dimensional (2-D) code family and transmitter/receiver structures for incoherent multi-wavelength-time spread optical CDMA networks. The combination of metal-coated reflection delay lines and arrayed waveguide gratings (AWG) gives the proposed optical coder/decoder much enhanced flexibility in accommodating different code sets. Successful encoding/decoding has been demonstrated on signals up to 3-GHz time-chip rate with 4/spl times/15 code words.
Keywords :
code division multiple access; decoding; diffraction gratings; encoding; optical arrays; optical delay lines; optical fibre networks; optical waveguides; wavelength division multiplexing; 2D code family; GHz time-chip rate; arrayed waveguide gratings; code sets; code words; incoherent multi-wavelength-time spread optical CDMA networks; metal-coated reflection delay lines; mirrored fiber delay lines; optical coder/decoder; receiver structures; transmitter; wavelength multiplexers; wavelength-time spreading optical CDMA system; Arrayed waveguide gratings; Decoding; Multiaccess communication; Optical arrays; Optical fiber networks; Optical receivers; Optical reflection; Optical transmitters; Optical waveguides; Two dimensional displays;
Journal_Title :
Photonics Technology Letters, IEEE
