Figure 7
From: Strip-loaded Mach–Zehnder interferometer for absolute refractive index sensing
Scanning electron microscope pictures (top views) of different sections of the Mach–Zehnder interferometer. (a) Y-branch splitter with a zoomed in on the separation of the two arms. (b) Input of the sensing region showing part of the sample arm. (c) Latter part of the sensing region and beginning of the taper section.
