Title :
Controlling the coupling ratio of the plasmonic directional couplers by SPM and XPM nonlinear effects
Author :
Nozhat, Najmeh ; Granpayeh, N.
Author_Institution :
Fac. of Electr. Eng., Shiraz Univ. of Technol., Shiraz, Iran
Abstract :
In this paper, we have shown that by increasing the input power in a Kerr-type nonlinear plasmonic directional coupler (PDC), the bar coupling ratio can be controlled. In 3dB performance of the directional coupler, it has been shown that by utilizing the cross phase modulation (XPM) nonlinear effect the required pump power has been reduced significantly compared to the signal power with self phase modulation (SPM) effect.
Keywords :
optical Kerr effect; optical directional couplers; optical modulation; optical pumping; phase modulation; Kerr-type nonlinear plasmonic directional coupler; SPM nonlinear effects; XPM nonlinear effects; coupling ratio; cross phase modulation; input power; pump power; self phase modulation; Couplings; Dielectrics; Directional couplers; Metals; Modulation; Plasmons; Time-domain analysis; Cross phase modulation; Kerr nonlinear effect; Plasmonic directional coupler; Surface plasmons;
Conference_Titel :
Electrical Engineering (ICEE), 2013 21st Iranian Conference on
Conference_Location :
Mashhad
DOI :
10.1109/IranianCEE.2013.6599892
