A very compact Mach-Zehnder interferometer with left-handed material

作者：Tang Ting-Ting^*; Chen Fu-Shen; Chen Kai-Xin; Sun Bao

来源：Optics Communications, 2011, 284(7): 1807-1810.

DOI：10.1016/j.optcom.2010.11.058

• REFRACTION
• MU

A very compact Mach-Zehnder interferometer (MZI) composed of two parallel straight waveguides with left-handed material (LHM) layers is proposed. The operating principle and characteristics of the MZI with electro-optic material (EOM) core are analyzed by using the supermode theory and coupled mode theory. The result shows that regardless of material loss, a very compact MZI of only 0.87 mm x 0.022 mm can be achieved by utilizing EOM with ultrahigh electro-optic coefficient, which means a new way to fulfill a very compact electro-optic modulator or optical switch. The absorption effect of the proposed MZI is also analyzed by perturbation method which is generated by lossy LHM layers.

• 出版日期2011-4-1
• 单位电子科技大学; 成都信息工程大学