Title :
An All-Optical Switching Based on Resonance Breaking With a Transient Grating
Author :
Akin, Osman ; Dinleyici, Mehmet Salih
Author_Institution :
Izmir Inst. of Technol., Izmir, Turkey
Abstract :
A new resonance breaking in-fiber switch as an all-optical network component is investigated and presented. A transient grating is applied to break the transverse resonance of the fundamental waveguide mode and the power coupled into the higher order propagating mode is computed using coupled mode theory (CMT). The coupling of the modes with the grating forming beams in the evanescent region of the waveguide is investigated with four wave mixing (FWM). High conversion efficiency is calculated in the case of perfect phase matching at communication wavelength 1550 nm. The conversion efficiency of the proposed structure is considered in terms of third-order nonlinear susceptibility, and the effect of design and tuning parameters are investigated for grating forming geometry and laser beam intensity, respectively.
Keywords :
coupled mode analysis; diffraction gratings; light propagation; multiwave mixing; nonlinear optical susceptibility; optical communication equipment; optical fibre networks; optical fibre theory; optical phase matching; optical resonators; optical switches; optical waveguide components; all-optical network component; communication wavelength; coupled mode theory; evanescent region; four wave mixing; higher order propagating mode; in-fiber switch; laser beam intensity; optical design; optical tuning; phase matching; resonance breaking; third-order nonlinear susceptibility; transient grating; waveguide mode; wavelength 1550 nm; Four-wave mixing; Gratings; Laser beams; Nonlinear optics; Optical switches; Optical waveguides; Transient analysis; Four wave mixing (FWM); nonlinear optics; optical Kerr effect; optical switches; transient gratings;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2010.2089599
