All polymer asymmetric Mach–Zehnder interferometer waveguide sensor by imprinting bonding and laser polishing

Liu Yu, Sun Yue, Yi Yun-Ji^†, Tian Liang, Cao Yue, Chen Chang-Ming, Sun Xiao-Qiang, Zhang Da-Ming

(color online) Relationshis between and for (a) rectangular waveguide structure with one surface contacting the test medium, (b) optimization rectangular waveguide structure with three surfaces contacting the test medium, (c) inverted ridge waveguide structure. (d) Schematic diagram of cross section of rectangular waveguide structure with one surface contacting the test media. (e) Schematic diagram of cross section of rectangular waveguide structure which has three surfaces contacting the test medium. (f) Schematic diagram of cross section of inverted ridge waveguide structure.