16Distributed Temperature Sensing Based on Raman Scattering
16.1 Raman Scattering Theory
Light is an electromagnetic wave. When the electromagnetic waves encounter an obstacle or non‐homogeneity, the incident electromagnetic wave interacts with the molecules or atoms of the medium. When the incident electromagnetic frequency is far away from the resonant frequency of the medium, electromagnetic wave related to time is generated. The secondary electromagnetic is the scattering effect. When the incident light power of the fiber is small, the spontaneous scattering is observed in the fiber [1]. When the incident light frequency is w, its spontaneous scattering spectrum in light is shown in Figure 16.1.
Figure 16.1 Schematic diagram of typical ...
Get Optical Fiber Sensing Technologies now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
