中国物理B ›› 2019, Vol. 28 ›› Issue (9): 94215-094215.doi: 10.1088/1674-1056/ab38a3
• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇 下一篇
Hu Long(龙虎), Xuan-Ke Zeng(曾选科), Yi Cai(蔡懿), Xiao-Wei Lu(陆小微), Hong-Yi Chen(陈红艺), Shi-Xiang Xu(徐世祥), Jing-Zhen Li(李景镇)
Hu Long(龙虎)1,2, Xuan-Ke Zeng(曾选科)1, Yi Cai(蔡懿)1, Xiao-Wei Lu(陆小微)1, Hong-Yi Chen(陈红艺)1, Shi-Xiang Xu(徐世祥)1, Jing-Zhen Li(李景镇)1
摘要:
A new type and easy-to-fabricate metal-insulator-metal (MIM) waveguide reflector based on Sagnac loop is designed and investigated. The transfer matrix theoretical model for the transmission of electric fields in the reflector is established, and the properties of the reflector are studied and analyzed. The simulation results indicate that the reflectivity strongly depends on the coupling splitting ratio determined by the coupling length. Accordingly, different reflectivities can be realized by varying the coupling length. For an optimum coupling length of 750 nm, the 3-dB reflection bandwidth of the MIM waveguide reflector is as wide as 1.5 μm at a wavelength of 1550 nm, and the peak reflectivity and isolation are 78% and 23 dB, respectively.
中图分类号: (Integrated optics)