MULTIWAVELENGTH CORRELATOR FOR OPTICAL HEADER RECOGNITION BASED ON ARRAYS OF FIBRE BRAGG GRATINGS

摘要

We demonstrate a novel optical correlator for multiwave-length header recognition employing arrays of fibre Bragg gratings (FBGs). One FBG array is used to appropriately delay the entire different header wavelengths, and the others are used as a header bank, in which each one is designed with a different wavelength profile. The proof of principle of the optical correlator is experimentally demonstrated and verified for 4-bit header patterns at 2.27 Gb/s.