Roger Dorsinville

Carried out in depth experimental studies of self phase modulation (SPM), degenerate four wave mixing (DFWM), cross phase modulation (XPM), stimulated Raman scattering (SRS), phase conjugation, and Raman induced phase conjugation (RIPC) in bulk and structured materials. These studies lead to the discovery of new materials with large nonlinear responses.

Investigated silica based photonic crystals as dispersion compensation devices over a broad spectral range (500nm to 2000nm).

Designed and tested several optical computing schemes including an optical phase conjugation based residue arithmetic computation scheme, and an ultrafast digital optical signal processor using a Venn diagram based spatial encoding technique.

Investigated the optical nonlinearity of semiconductor quantum dots imbedded in transparent polymer matrices. This work suggests that these structures could be used in efficient optical limiting devices.

Investigated novel nonlinear distributed p-n junctions made of p-doped and n-doped single-wall carbon nanotubes. This concept can be used to explore coherent arrays of more complex structures for nano-circuits applications.

Participated in the design long haul DWDM optical communication systems. This work included the characterization and optimization of the nonlinear penalty, chromatic dispersion, polarization mode dispersion, and polarization dependent losses in DWDM systems.

Designed and tested distributed and lumped Raman amplifiers for undersea long haul applications.

Developed and tested an ultra-wide bandwidth hybrid fiber optic parametric/Raman amplifier.

Designed and experimentally demonstrated new Ethernet passive optical network architectures which provide added flexibility and simplicity in the deployment of access networks.

• Ph.D., Applied Physics, Moscow State University, Russia, 1976.
• B.S., Applied Physics, Moscow State University, Russia, 1972.

• Introduction to Lasers (F5800)
• Optical Signal Processing (I8500)

Fabrication and nonlinear optical characterization of nanomaterials and structures. All optical devices. Fiber amplifiers. Optical communication.

• Femtosecond superradiant response of J-aggregates adsorbed onto silver colloid surfaces. Gul yiaglioglu, Serdar Ozcelik, R. Dorsinville. Journal of Applied Physics, 94, 3143 (2003).
• Dispersion and pulse-duration dependence of the nonlinear optical response of Gd2@C80. Gul Yaglioglu, Robinson Pino, and Roger Dorsinville. Applied Physics Letters, 78, 898 (2001).
• Nonlinear dispersion properties of subwavelength photonic crystals. S. Vijayalakshmi, H. Grebel, G. Yaglioglu, R. Pino, R. Dorsinville, C. W. White. Applied Physics Letters, 78, 1754 (2001).
• Nonlinear optical response of Si nanostructures in a silica matrix. S. Vijayalakshmi, H. Grebel, G. Yaglioglu, R. Pino, R. Dorsinville, C. W. White. Journal of Applied Physics, Vol. 88 Issue 11, 6418 (2000).
• Third order nonlinear optical susceptibility of Langmuir-Blodgett membranes of some aromatic polydiacetylenes determined by Z-scan technique. M.P.Carreon, G.Burillo, T.Ogawa, G.Yagliogu, and R.Dorsinville, Nonlinear Optics, 24, 27-33 (2000)
• A. Hossain, H. Erkan, A. Hadjiantonis, R. Dorsinville, G. Ellinas, and M. A. Ali, “A survivable broadband local access PON architecture: A new direction for supporting simple and efficient resilience capabilities” Journal of Optical Networking, June 2008.
• Measurement of nonlinear phase of a SOA using an asymetric loop mirror. M. A. Ummy, M.F. Arend, M.A Ali and Roger Dorsinville. Optics & Laser Technology 40, 995-999 (2008)
• Extending the gain bandwidth of combined Raman-parametric fiber amplifiers using highly nonlinear fiber. M. A. Ummy, M.F. Arend, N. Madamopoulos and Roger Dorsinville. Accepted for publication. Journal of Lightwave Technology (2008).
• Nonlinear optical transmission of distributed p-n nano-junctions. H. Han, J. Chen, Y. Zhang, M. Etienne, R. Dorsinville and H. Grebel. J. Phys. D: Appl. Phys., 41, 065305 (2008).
• Enhanced optical nonlinearity of surfactant-capped CdS quantum dots embedded in an optically transparent polystyrene thin film. Y. Gao, A. Tonizzo, A. Walser, M. Potasek and R. Dorsinville. Applied Physics Letters, 92, 033106 (2008).