Experimental investigation on security of temporal phase coding OCDMA system with code-shift keying and differential phase-shift keying

We experimentally demonstrate security vulnerability in the temporal phase coding single-user DPSK- and CSK-OCDMA systems with a DPSK demodulator. In the systems without proper decoding, error free BER performance and clear open eye diagrams indicate the eavesdropping possibility for both systems. We also discuss the principle of DPSK demodulation attack.

[1]  David D. Sampson,et al.  Photonic code-division multiple-access communications , 1997 .

[2]  T. Miyazaki,et al.  Coherent OCDMA system using DPSK data format with balanced detection , 2006, IEEE Photonics Technology Letters.

[3]  Bo Dai,et al.  Security Improvement Using $\pm\pi/2$-Phase-Shifted SSFBG En/Decoder in Time-Spreading OCDMA , 2010, IEEE Photonics Technology Letters.

[4]  A.M. Weiner,et al.  Four user, 2.5 Gb/s, spectrally coded O-CDMA system demonstration using low power nonlinear processing , 2004, Optical Fiber Communication Conference, 2004. OFC 2004.

[5]  N. Wada,et al.  Asynchronous Multiuser Coherent OCDMA System With Code-Shift-Keying and Balanced Detection , 2007, IEEE Journal of Selected Topics in Quantum Electronics.

[6]  T.H. Shake,et al.  Security performance of optical CDMA Against eavesdropping , 2005, Journal of Lightwave Technology.

[7]  Jawad A. Salehi,et al.  Code division multiple-access techniques in optical fiber networks. I. Fundamental principles , 1989, IEEE Trans. Commun..

[8]  Andrew M. Weiner,et al.  Spectrally phase-coded O-CDMA [Invited] , 2007 .

[9]  Xu Wang,et al.  Analysis of beat noise in coherent and incoherent time-spreading OCDMA , 2004, Journal of Lightwave Technology.

[10]  A.M. Weiner,et al.  Experimental investigation of security issues in OCDMA , 2006, 2006 Optical Fiber Communication Conference and the National Fiber Optic Engineers Conference.

[11]  K. Kitayama.  State of the art of and application OCDMA, OCDM, and OC-label switching , 2004 .

[12]  Andrew M. Weiner,et al.  Coherent ultrashort light pulse code-division multiple access communication systems , 1990 .