Tarek Abdel Azzem Mohamed Ramadan Profile

Tarek Abdel Azzem Mohamed Ramadan

Professor at Electronics Engineering and Electrical Communications

Career Information

Academic Information

Brief

Areas of Research

Optical Communications and Integrated Optics: Analytical and numerical techniques for the analysis of optical wave propagation. Modeling, simulation, characterization, and fabrication of guided-wave photonic devices.

Awards

Included in the twenty second edition of Who’s Who in the world.

Articles

[1] N. Anous, M. Abdallah, T. Ramadan, K. Qaraqe, and D. Khaili, “Angle-tolerant hybrid plasmonic filters for visible light communications,” Appl. Opt., vol. 56, C106-C116, 2017.
[2] A. Afifi, A. El-Damak, T.A. Ramadan, M. Ahmed, “Fiber optical coherence domain polarimetry for PM fiber measurements,” J. Lightwave Technol., vol. PP, no. 99, pp.1-1, 2016.
[3] T.A. Ramadan, “A design of a vertical multimode interference coupler with an ultra-wide bandwidth,” IEEE Photon. Technol. Lett., vol. 28, No.23, pp. 2669-2672, 2016.
[4] T.A. Ramadan, “A novel design of a wideband digital vertical multimode interference coupler,” J. Lightwave Technol., vol. 34, No.17, pp. 4015-4022, 2016.
[5] T.A. Ramadan, “Modal spectrum engineering of multilayer optical waveguides: towards digital vertical multimode interference couplers,” Opt. Quant. Electron., vol. 48, no.3, 191, 2016.
[6] T.A. Ramadan, “Analog-to-digital optical waveguide conversion at sampling periods greater than the free-space wavelength,” J. Opt. Soc. Am. A, vol. 31, no.1, pp. 35-40, 2014.
[7] T.A. Ramadan, “A search-and-track algorithm for controlling the number of guided modes of planar optical waveguides with arbitrary refractive index profiles,” Opt. Quant. Electron., vol. 43, no.4, pp. 175-189, 2012.
[8] T.A. Ramadan, “A new algorithm for the design of uniform and nonuniform arrays of coupled optical waveguides,” Int. J. Phys. Sciences, vol. 5, no.7, pp. 1200-1211, 2010.
[9] T.A. Ramadan, “Sturm-Sequence Properties of Recurrence Dispersion Functions of Periodic Waveguide Arrays: Theory and Applications,” J. Lightwave Technol., vol. 27, no. 20, pp. 4548-4562, 2009.
[10] T.A. Ramadan, “A recurrence technique for computing the effective indexes of the guided modes of coupled single-mode waveguides,” Progress In Electromagnetics Research M, vol. 4, pp. 33- 46, 2008.
[11] T.A. Ramadan, “Expanding the core: A new approach for the design of single mode waveguides,” J. Lightwave Technol., vol. 23, pp. 3843- 3856, 2005.
[12] T.A. Ramadan, “Single-mode waveguides with better combinations of modal size and modal power confinement,” IEEE Photon. Technol. Lett., vol. 17, pp. 2095-2097, 2005.
[13] T.A. Ramadan, "Cross-orthogonality between guided and radiation modes at optical waveguide discontinuities,” J. Lightwave Technol., vol. 21, pp.1394-1404, 2003.
[14] T.A. Ramadan and R.W. Cohn, “Pseudoreversibility condition for minimizing radiation loss at discontinuities of coupled waveguides,” IEEE Photon. Technol. Lett., vol. 15, pp. 63-65, 2003.
[15] T.A. Ramadan, R. Scarmozzino, and R.M. Osgood, Jr., "A novel 1x4 coupler-multiplexer permutation switch for WDM applications,” J. Lightwave Technol., vol. 18, pp.579-588, 2000.
[16] T.A. Ramadan, M. Levy, and R.M. Osgood, Jr., "Electro-optic modulation in crystal-ion-sliced z-cut LiNbO3 thin films,” Appl. Phys. Lett., vol. 76, No. 11, pp.1407-1409, 2000.
[17] T.A. Ramadan, R. Scarmozzino, and R.M. Osgood, Jr., "Adiabatic couplers: Design rules and optimization,” J. Lightwave Technol., vol. 16, pp.227-238, 1998.

Publications

1. Tarek Ramadan, " A design of a vertical multimode interference coupler with an ultra-wide bandwidth ", photonics technology letters, 2016
2. Tarek Ramadan, " A novel design of a wideband digital vertical multimode interference coupler ", journal of lightwave technology, 2016
3. Ramadan, T.A., " Modal spectrum engineering of multilayer optical waveguides: towards digital vertical multimode interference couplers ", Optical and Quantum Electronics, 2016
4. Ramadan, T.A., " Analog-to-digital optical waveguide conversion at sampling periods greater than the free-space wavelength ", Journal of the Optical Society of America A: Optics and Image Science, and Vision, 2014
5. Ramadan, T.A., " A search-and-track algorithm for controlling the number of guided modes of planar optical waveguides with arbitrary refractive index profiles ", Optical and Quantum Electronics, 2012
6. Ramadan, T.A., " A search-and-track algorithm for controlling the number of guided modes of planar optical waveguides with arbitrary refractive index profiles ", National Radio Science Conference, NRSC, Proceedings, 2011
7. Ramadan, T.A., " A search-and-track algorithm for controlling the number of guided modes of planar optical waveguides with arbitrary refractive index profiles ", Applied Computational Electromagnetics Society Newsletter, 2011
8. Ramadan, T.A., " A new algorithm for the design of uniform and nonuniform arrays of coupled optical waveguides ", International Journal of Physical Sciences, 2010
9. Ramadan, T.A., " Maximization of phase and group birefringence of single-mode silicon-on-insulator waveguides ", Optics InfoBase Conference Papers, 2009
10. Ramadan, T.A., " Sturm-Sequence properties of recurrence dispersion functions of periodic waveguide arrays: Theory and applications ", Journal of Lightwave Technology, 2009
11. Ramadan, T.A., " High-power expanded-core-waveguide edge-emitting bipolar cascade lasers ", Optics InfoBase Conference Papers, 2006
12. Ramadan, T.A., " High-power expanded-core-waveguide edge-emitting bipolar cascade lasers ", Conference on Lasers and Electro-Optics and 2006 Quantum Electronics and Laser Science Conference, CLEO/QELS 2006, 2006
13. Ramadan, T.A., " Expanding the core: A new approach for the design of single-mode waveguides ", Journal of Lightwave Technology, 2005
14. Ramadan, T.A., " Single-mode waveguides with better combinations of modal size and modal power confinement ", IEEE Photonics Technology Letters, 2005
15. Ramadan, T.A., " A more tolerant design of 3-dB adiabatic couplers ", National Radio Science Conference, NRSC, Proceedings, 2004
16. Ramadan, T.A., " An efficient approach to minimize radiation loss at index discontinuities of optical waveguides ", National Radio Science Conference, NRSC, Proceedings, 2003
17. Ramadan, T.A., " Cross-orthogonality between guided and radiation modes at optical waveguide discontinuities ", Journal of Lightwave Technology, 2003
18. Ramadan, T.A., Cohn, R.W., " Pseudoreversibility condition for minimizing radiation loss at discontinuities of coupled waveguides ", IEEE Photonics Technology Letters, 2003
19. Ramadan, T.A., " The design of grating couplers with ultra-low radiation loss ", Conference Proceedings - Lasers and Electro-Optics Society Annual Meeting-LEOS, 2002
20. Ramadan, T.A., Levy, M., Osgood Jr., R.M., " Electro-optic modulation in crystal-ion-sliced z-cut LiNbO3 thin films ", Applied Physics Letters, 2000
21. Ramadan, T.A., Levy, M., Osgood Jr., R.M., " Electro-optic modulation in single-crystal LiNbO3 thin films ", Pacific Rim Conference on Lasers and Electro-Optics, CLEO - Technical Digest, 2000
22. Ramadan, T.A., Scarmozzino, R., Osgood Jr., R.M., " Novel 1×4 coupler-multiplexer permutation switch for WDM applications ", Journal of Lightwave Technology, 2000
23. Ramadan, T.A., Scarmozzino, R., Osgood Jr., R.M., " Adiabatic couplers: Design rules and optimization ", Journal of Lightwave Technology, 1998