Propagation characteristics of non-stationary coherent optical waves in a stratified medium with Kerr nonlinearity

A thesis accepted by Tallinn University of Technology for the Degree of Master of Science

Author:
Mervi Sepp

Tallinn University of Technology, Estonia

Promoters:
Pearu Peterson, PhD

Institute of Cybernetics at Tallinn Technical University, Estonia

Yasuo Tomita`_, DSc., Prof.

Dept. of Electronics Engineering, University of Electro-Communications, Tokyo, Japan

Opponents:
Jaan Kalda, PhD.

Institute of Cybernetics at Tallinn Technical University, Estonia

Abstract:

The nonstationary propagation of coherent light through a nonlinear periodic medium is studied. The structure under investigation is photopolymer hologram doped with CdSe nanoparticles. Four different sets of parameters are studied. For these structures the input-output power transmission exhibit multistable behavior. To establish on which parts of the multistable curve solutions are stable, the linear stability analysis is performed. The main result is that stable solutions can be found on only the first multistable branch, for which the transmitted intensities fall out of the range detectable in experiments. Since the stable transmission cannot be achieved for given structures then the nonstationary solutions are investigated by numerically integrating the coupled-mode system.

Place/venue:

The presentation of the thesis took place on June, 2006, at Tallinn University of Technology, Tallinn, Estonia.

Softcopy:

http://cens.ioc.ee/~pearu/theses/mervi_msc_2006.pdf (3.2MB).