Optical device for simultaneously generating and processing optical codes

摘要

The invention relates to an optical device, apt to generate and process optical codes at least one wavelength, comprising P inputs s, with 1<=s<=P, and P>=1, and N outputs k, with 1<=k<=N and N>=1, characterised in that it is apt to simultaneously generate and process N_c>=2, made of C chips with time interval tau, with C>=2, characterised in that the transfer function T_sk(f) from the input s to the output k satisfies the following formula: where: F_v is a transfer function of an optical filter, for v=0, 1 . . . , V-1, a_v is a constant value, for v=0,1, . . . , V-1 S_sk is an integer number (S_skepsilonZ), N_k is a constante value, for k=2, . . . N, and V is a positive integer number with 1>=V>=log₂N. The invention further relates to a set of optical codes, apt to be generated, in particular, by such optical device, and to networks and apparatus comprising such optical device. $\begin{array}{cc}T_{\mathrm{sk}}\left(f\right)=\prod _{v=0}^{V-1}F_v\left(a_{v}f+\frac{S_{\mathrm{sk}}}{N_k\mathrm{tau}}\right)& \left(1\right)\end{array}$