Efficient picosecond pulse shaping by programmable Bragg gratings

Author

Wu, Chunbai ; Raymer, Michael G.

Author_Institution

Dept. of Phys., Oregon Univ., Eugene, OR

Volume

42

Issue

9

fYear

2006

Firstpage

873

Lastpage

884

Abstract

We propose an efficient approach for arbitrary optical pulse shaping in the subhundred to a few hundreds picosecond regime. The designed device uses one-dimensional wave-guided Bragg gratings filled with an electrically controlled dielectric. One hundred electrodes are attached along the waveguide so that the refractive index pattern is programmable by applying voltages. The frequency response of this device with certain refractive index patterns is analyzed. Numerical simulations show that output pulses with desired shapes and high efficiency (>40% of theoretical maximum) can be obtained by using a genetic algorithm searching method augmented by an adiabatic following optimization scheme

Keywords

Bragg gratings; genetic algorithms; optical design techniques; optical pulse shaping; optical waveguides; refractive index; Bragg gratings; genetic algorithm; picosecond pulse shaping; refractive index pattern; Bragg gratings; Dielectric devices; Electrodes; Frequency response; Optical pulse shaping; Optical waveguide theory; Optical waveguides; Pulse shaping methods; Refractive index; Voltage; Bragg gratings; genetic algorithm (GA); optical pulse shaping;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/JQE.2006.880068

Filename

1661785