In-fiber optical whispering gallery microcavity structure and its manufacturing method
A kind of whispering gallery, optical technology, applied in manufacturing tools, laser welding equipment, coupling of optical waveguides, etc., can solve the problem of difficult to achieve miniaturization, integration, low system compactness and stability, complex microsphere filling process The problem is to reduce the difficulty of positioning, accurately adjust the size parameters, and simplify the processing method.
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[0018] A fiber-type optical whispering gallery microcavity structure, including an optical fiber, its innovation lies in: an annular groove is arranged on the outer side of the fiber core on the optical fiber, the axial direction of the annular groove is parallel to the radial direction of the optical fiber, and the outer wall of the annular groove is parallel to the optical fiber. Spaces are left between the outer walls of the fiber core, and the depth of the annular groove covers the fiber core of the optical fiber, and the annular groove forms an optical whispering gallery microcavity.
[0019] A method for manufacturing a fiber-shaped optical whispering gallery microcavity structure, the innovation of which is: fabricating a fiber-shaped optical whispering gallery microcavity structure according to the following method:
[0020] 1) Use a femtosecond laser to cut the surface of the optical fiber, and cut a processed surface outside the core of the optical fiber. The processe...
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