Absorption-Modulated Crossed-Optical Fiber-Sensor Platform for Measurements in Liquid Environments and Flow Streams

Figure 6

A plot of the intensity ratio of reference regions R3 and R2 versus the as-increased pressure is applied to the illumination fiber by the mode scrambler. The Zn-PAN₂ complex absorbs a significant fraction of light in the illumination fiber that can be probed by the reference regions.