Title :
Unipolar codes for spectral-amplitude-coding optical CDMA systems based on projective geometries
Author :
Djordjevic, Ivan B. ; Vasic, Bane
Author_Institution :
Dept. of Electr. & Electron. Eng., Univ. of Bristol, UK
Abstract :
A novel class of unipolar optical orthogonal codes (OOCs), with ideal in-phase cross correlation for spectral-amplitude coding optical code-division multiple-access systems based on projective geometry (PG) is proposed. Large flexibility in cross-correlation control makes the proposed OOC family an excellent candidate for applications that require a large number of users. The construction permits arbitrary large OOC families. Novel electronically controllable PG-OOC encoder-decoder architectures based on arrayed waveguide grating and semiconductor optical amplifier gates are proposed as well.
Keywords :
code division multiple access; decoding; encoding; geometry; optical correlation; optical fibre communication; arrayed waveguide grating; cross-correlation control; encoder-decoder architectures; in-phase cross correlation; optical code-division multiple-access systems; projective geometries; projective geometry; semiconductor optical amplifier gates; spectral-amplitude coding optical code-division multiple-access systems; spectral-amplitude-coding optical CDMA system; unipolar codes; Arrayed waveguide gratings; Geometrical optics; Geometry; Multiaccess communication; Optical arrays; Optical receivers; Optical waveguides; Semiconductor optical amplifiers; Semiconductor waveguides; Stimulated emission;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2003.816672
