Аннотации:
Optical backscatter reflectometry (OBR) is a method for the interrogation of Rayleigh
scattering occurring in each section of an optical fiber, resulting in a single-fiber-distributed sensor
with sub-millimeter spatial resolution. The use of high-scattering fibers, doped with MgO-based
nanoparticles in the core section, provides a scattering increase which can overcome 40 dB. Using
a configuration-labeled Scattering-Level Multiplexing (SLMux), we can arrange a network of
high-scattering fibers to perform a simultaneous scan of multiple fiber sections, therefore extending
the OBR method from a single fiber to multiple fibers. In this work, we analyze the performance and
boundary limits of SLMux, drawing the limits of detection of N-channel SLMux, and evaluating the
performance of scattering-enhancement methods in optical fibers.