<title>Periodic microbending on single-mode optical fibers for multiplexed sensing</title>

Loss Behavior of Single-mode Optical Fiber Microbend Sensors

“…Although the experimental results show that the spectral losses in such sensors occur as a series of distinct maxima and minima [3], an accurate modelling technique is still not available. The mode coupling theory can predict the center wavelengths of the loss maxima, but it does not provide information regarding the spectral loss variation [4].…”

Loss Behavior of Single-mode Optical Fiber Microbend Sensors

“…On the other hand, single-mode optical fiber microbend sensors support only a small number of discrete cladding modes and, hence, the maximum sensitivity is achieved when the spatial bend frequency equals the difference between the propagation constants of the fundamental mode and a discrete cladding mode [2]. Although the experimental results show that the spectral losses in such sensors occur as a series of distinct maxima and minima [3], an accurate modelling technique is still not available. The mode coupling theory can predict the center wavelengths of the loss maxima, but it does not provide information regarding the spectral loss variation [4].…”