volume | PIER Journals

Abstract

Based on space-time duality and through the use of temporal dispersive delay lines, this paper presents a demonstration of temporal cloaking/uncloaking at microwave frequencies. Numerical simulations of pulse generation, continuous wave signal recovery and data recovery are discussed in relation to the proposed system architecture. This paper also suggests a practical means for implementation of real time dual temporal cloaking/uncloaking. Compared to traditional signal processing systems, since the recovered data emerges with a reversed form in time domain before its final decoding, an extra operation named time-reversal is needed to obtain the correct data, which could help protect the significant signals better with the proposed temporal cloaking/uncloaking system. The proposed method and achieved results indicate potential application in secure communications and data multiplexing subject to channel bandwidth requirements.

1. Mccall, M. W., A. Favaro, P. Kinsler, and A. Boardman, "A spacetime cloak, or a history editor," Journal of Optics, Vol. 13, No. 13, 24003-9, 2011. Google Scholar

2. Fridman, M., A. Farsi, Y. Okawachi, and L. A. Gaeta, "Demonstration of temporal cloaking," Nature, Vol. 481, 62-65, 2012.
doi:10.1038/nature10695 Google Scholar

3. Kolner, B., "Space-time duality and the theory of temporal imaging," IEEE Journal of Quantum Electronics, Vol. 30, 1951-1963, 1994.
doi:10.1109/3.301659 Google Scholar

4. Azana, J. and M. A. Muriel, "Temporal self-imaging effects: theory and application for multiplying pulse repetition rates," IEEE Journal of Selected Topics in Quantum Electronics, Vol. 7, 728-744, 2001.
doi:10.1109/2944.974245 Google Scholar

5. Berger, N. K., B. Levit, A. Bekker, and B. Fischer, "Compression of periodic optical pulses using temporal fractional Talbot effect," IEEE Photonics Technology Letters, Vol. 16, 1855-1857, 2004.
doi:10.1109/LPT.2004.831234 Google Scholar

6. Lukens, J. M., D. E. Leaird, and A. M. Weiner, "A temporal cloak at telecommunication data rate," Nature, Vol. 498, 205-208, 2013.
doi:10.1038/nature12224 Google Scholar

7. Kolner, B. H. and M. Nazarathy, "Temporal imaging with a time lens," Opt. Lett., Vol. 14, 630-632, 1989.
doi:10.1364/OL.14.000630 Google Scholar

8. Bennett, C. V. and B. Kolner, "Principles of parametric temporal imaging. I. System configurations," IEEE Journal of Quantum Electronics, Vol. 36, 430-437, 2000.
doi:10.1109/3.831018 Google Scholar

9. Bennett, C. V. and B. Kolner, "Principles of parametric temporal imaging. I. System performance," IEEE Journal of Quantum Electronics, Vol. 36, 649-655, 2000.
doi:10.1109/3.845718 Google Scholar

10. Salem, R., M. A. Foster, A. C. Turner, D. F. Geraghty, M. Lipson, and A. L. Gaeta, "Optical time lens based on four-wave mixing on a silicon chip," Opt. Lett., Vol. 33, 1047-1049, 2008.
doi:10.1364/OL.33.001047 Google Scholar

11. Foster, M. A., R. Salem, D. F. Geraghty, A. C. Turner-Foster, M. Lipson, and A. L. Gaeta, "Silicon-chip-based ultrafast optical oscilloscope," Nature, Vol. 456, 81-84, 2008.
doi:10.1038/nature07430 Google Scholar

12. Foster, M. A., R. Salem, Y. Okawachi, A. C. Turner-Foster, M. Lipson, and A. L. Gaeta, "Ultrafast waveform compression using a time-domain telescope," Nature Photonics, Vol. 3, 581-585, 2009.
doi:10.1038/nphoton.2009.169 Google Scholar

13. Lerosey, G., J. De Rosny, A. Tourin, A. Derode, G. Montaldo, and M. Fink, "Time reversal of electromagnetic waves," Physics Review Letters, Vol. 92, 193904(1-3), 2009. Google Scholar

14. Lee, T. H., Planar Microwave Engineering: A Practical Guide to Theory, Measurement, and Circuits, Cambridge University Press, 2004.

15. Abielmona, S., S. Gupta, and C. Caloz, "Compressive receiver using a CRLH-based dispersive delay line for analog signal processing," IEEE Transactions on Microwave Theory and Techniques, Vol. 57, 2617-2626, 2009.
doi:10.1109/TMTT.2009.2031927 Google Scholar

16. Gupta, S., A. Parsa, E. Perret, R. V. Snyder, R. J. Wenzel, and C. Caloz, "Group-delay engineered noncommensurate transmission line all-pass network for analog signal processing," IEEE Transactions on Microwave Theory and Techniques, Vol. 58, 2392-2407, 2010.
doi:10.1109/TMTT.2010.2058933 Google Scholar

17. Messer, H., H. Gilboa, and Y. Bar-Ness, "SAW time scaling techniques," IEEE Transactions on Sonics and Ultrasonics, Vol. 28, 271-277, 1981.
doi:10.1109/T-SU.1981.31258 Google Scholar

18. Papoulis, A., Signal Analysis, McGraw-Hill Press, New York, 1978.

19. Ardehali, M., "Narrow pulse generator,", US 7782111 B2 (patent), 2010. Google Scholar

20. Laso, M. A., T. Lopetegi, M. J. Erro, D. Benito, et al. "Real-time spectrum analysis in microstrip technology," IEEE Transactions on Microwave Theory and Techniques, Vol. 51, 705-717, 2003.
doi:10.1109/TMTT.2003.808741 Google Scholar

Dr. Hong-Cheng Zhou

Professor Vincent Fusco

Professor Bing-Zhong Wang

Dr. Lei Zhong

Dr. Shuai Ding