Water body flow velocity optical fiber, water flow acceleration optical fiber and all-optical fiber bionic fish side line system
An acceleration and bionic fish technology, applied in the field of bionic materials and bionic intelligent structures, can solve the problems of single function, low integration, low sensitivity of sensing devices, etc., and achieve the effect of filtering noise and high integration
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[0068] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0069] The invention provides a water velocity optical fiber, comprising a cladding and a fiber core, the fiber core is distributed with an array of Bragg grating pairs along the axial direction, and each group of grating pairs in the Bragg grating pair array has a different reflection center wavelength, The pair of gratings forms a Fabry-Perot cavity, and the optical signal propagating in the fiber core will interfere between each pair of gratings;
[0070] The outer cladding of the fiber core is axially distributed with gradient cilia and sensory tops, and the sensory tops are used to wrap the gr...
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