Summary: ICTON 2007
Interferometric Noise Characterisation of a 2-D Time Spreading
Wavelength Hopping OCDMA Networks using FBG
Craig Michiel, Robert Atkinson', Ivan Andonovicl, Ivan Glesk2, Paul Prucnal2
Kensuke Sasaki3, Gyaneshwar Gupta3
Department ofElectronic and Electrical Engineering, University ofStrathclyde, Glasgow, Scotland G] lXW
2Department ofElectrical Engineering, Princeton University, Princeton, NJ 08544
3 Oki Electric Industry Co., Ltd., Advanced Devices Laboratories
The results of a range of experimental characterization exercises of interferometric noise (IN) for the case of
a representative 2-D time spreading wavelength-hopping (2-D TW) optical code family are presented.
Interferometric noise is evaluated at a data rate of 2.5 Gbps within an OCDMA network emulation test bed
established utilising fibre Bragg grating encoders/decoders. The results demonstrate that this form of noise
introduces significant system power penalties and must be taken into consideration in any OCDMA network
designs and implementations.
Keywords: optical code-division multiple access (OCDMA), time-wavelength optical codes, beat noise,
fibre Bragg grating coders.