Chinese Optics Letters, 2015, 13 (6): 061301, Published Online: Sep. 14, 2018
Compact silicon-on-insulator-based 2 × 2 Mach–Zehnder interferometer electro-optic switch with low crosstalk
130.4815 Optical switching devices 130.3120 Integrated optics devices 200.4650 Optical interconnects
Abstract
We report a compact 2 × 2 Mach–Zehnder interferometer (MZI) electro-optic switch fabricated on a silicon-on-insulator using standard complementary metal-oxide semiconductor (CMOS) processes. With a short modulation arm length of 200 μm, the crosstalk is reduced to 22 dB by the new modulation scheme of push–pull modulation with a pre-biased π / 2 phase shift. The new modulation scheme can also work with a fast switching time of about 5.4 ns.
Jiejiang Xing, Zhiyong Li, Peiji Zhou, Yuanhao Gong, Yude Yu, Manqing Tan, Jinzhong Yu. Compact silicon-on-insulator-based 2 × 2 Mach–Zehnder interferometer electro-optic switch with low crosstalk[J]. Chinese Optics Letters, 2015, 13(6): 061301.