Map of the Opto-Mechanics of a Standard Optical Fiber (IMAGE)
Caption
This is a map of the opto-mechanics of a standard optical fiber. Colors denote the strength of the interaction between light and sound waves. A short section, located some 2 km from the input end of the fiber, is coated with a different material. That section is characterized by opto-mechanical response that peaks at a different ultra-sound frequency. The analysis protocol can distinguish between the two coating media even though light in the fiber never leaves the inner core.
Credit
Credit may be given to Bashan et al or to the entire team (Bashan, Diamandi, London, Preter, Zadok)
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