Analysis of characteristics of a parallel channel microring resonator electro-optic switch array

作者：Wang, Yuhai; Lv, Peng; Zhang, Yongling; Song, Mingxing; Liu, Chunling; Wang, Guofeng; Wang, Chunxu; Qin, Zhengkun^*

来源：Optik, 2018, 165: 332-340.

DOI：10.1016/j.ijleo.2018.03.122

• Integrated optics
• Microring
• Switch array
• Insertion loss
• Crosstalk

Based on coupled mode theory, electro-optic modulation theory, and microring resonance theory, a structural model was proposed for a polymer parallel channel microring resonator (MRR) electro-optic switch array, and in the meantime, with a resonance wave-length of 1550 nm, optimization design and simulation analysis were conducted on a eight microrings and nine channels switch array. According to the results of numerical simulation, the free spectral range (FSR) was about 17.71 nm and the 3-dB bandwidth of the output spectrum was about 0.18 nm when the cross-section size of the waveguide core was 1.5 x 1.5 mu m(2), the confining layer between the waveguide core and the electrode was 2.0 mu m thick, the metal electrode was 0.05 mu m thick, the coupling gap between the microring and the channel was 0.1 mu m, and the microring radius was 12.76 mu m. When the voltage of 7 V was applied on microring i of the device in turn, the output optical power P-i of horizontal channel i was the largest, and the output optical power of all the other channels became very small, which meant that the switching function of horizontal channel i was fulfilled. The insertion loss of the device was within a range of 1.39-8.17 dB, and the crosstalk was smaller than -4.8 dB.

• 出版日期2018
• 单位吉林师范大学