Looking outside the Fiber: Researchers Demonstrate New Concept of Optical Fiber Sensors (IMAGE)
Caption
Researchers at Bar-Ilan University in Israel have demonstrated a new concept of optical fiber sensors that addresses a decades-long challenge: the distributed mapping of refractive index outside the cladding of standard fiber, where light does not reach. The sensor can be used for leak detection in critical infrastructure, and process monitoring in the petrochemical industry, desalination plants, food and beverage production and more. In this image: Distributed mapping of media outside the cladding along two meters of standard optical fiber. Two short segments immersed in water and ethanol are clearly identified by the local spectra of coupling to a cladding mode of the fiber.
Credit
Prof. Avinoam Zadok
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