Photonic Sensors, 2017, 7 (2): 131–139, 网络出版: 2017-05-09  

Polymer Integrated Waveguide Optical Biosensor by Using Spectral Splitting Effect

Polymer Integrated Waveguide Optical Biosensor by Using Spectral Splitting Effect
作者单位
1 School of Physics and Optoelectronic Engineering, Dalian University of Technology, Dalian, 116024, China
2 Photonics Research Group, Department of Information Technology, Ghent University-IMEC, 9000 Ghent, Belgium
3 No. 38 Research Institute, China Electronics Technology Group Corporation, Hefei, 230088, China
4 Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
摘要
The polymer waveguide optical biosensor based on the Mach-Zehnder interferometer (MZI) by using spectral splitting effect is investigated. The MZI based biosensor has two unequal width sensing arms. With the different mode dispersion responses of the two-arm waveguides to the cladding refractive index change, the spectral splitting effect of the output interference spectrum is obtained, inducing a very high sensitivity. The influence of the different mode dispersions between the two-arm waveguides on the spectral splitting characteristic is analyzed. By choosing different lengths of the two unequal width sensing arms, the initial dip wavelength of the interference spectrum and the spectral splitting range can be controlled flexibly. The polymer waveguide optical biosensor is designed, and its sensing property is analyzed. The results show that the sensitivity of the polymer waveguide optical biosensor by using spectral splitting effect is as high as 104 nm/RIU, with an improvement of 2–3 orders of magnitude compared with the slot waveguide based microring biosensor.
Abstract
The polymer waveguide optical biosensor based on the Mach-Zehnder interferometer (MZI) by using spectral splitting effect is investigated. The MZI based biosensor has two unequal width sensing arms. With the different mode dispersion responses of the two-arm waveguides to the cladding refractive index change, the spectral splitting effect of the output interference spectrum is obtained, inducing a very high sensitivity. The influence of the different mode dispersions between the two-arm waveguides on the spectral splitting characteristic is analyzed. By choosing different lengths of the two unequal width sensing arms, the initial dip wavelength of the interference spectrum and the spectral splitting range can be controlled flexibly. The polymer waveguide optical biosensor is designed, and its sensing property is analyzed. The results show that the sensitivity of the polymer waveguide optical biosensor by using spectral splitting effect is as high as 104 nm/RIU, with an improvement of 2–3 orders of magnitude compared with the slot waveguide based microring biosensor.

Xiaonan HAN, Xiuyou HAN, Yuchen SHAO, Zhenlin WU, Yuxin LIANG, Jie TENG, Shuhui BO, Geert MORTHIER, Mingshan ZHAO. Polymer Integrated Waveguide Optical Biosensor by Using Spectral Splitting Effect[J]. Photonic Sensors, 2017, 7(2): 131–139. Xiaonan HAN, Xiuyou HAN, Yuchen SHAO, Zhenlin WU, Yuxin LIANG, Jie TENG, Shuhui BO, Geert MORTHIER, Mingshan ZHAO. Polymer Integrated Waveguide Optical Biosensor by Using Spectral Splitting Effect[J]. Photonic Sensors, 2017, 7(2): 131–139.

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!