one-dimension optical fiber array has been extensively applied in optical communication
optical imaging and detection systems recently. The manufacturing method of one-dimension optical fiber array and the principle of etching Si-V-grooves are introduced. The size of Si-V-grooves and the space between them are calculated according to the radius of the fiber
and a formula on the minimum depth of the Si-V-grooves is given
which related with the fiber radius and the opening space of the grooves. As a typical example
the silicon V-groove array is micromachined with anisotropic etching process
then the fibers are arranged and adhered in corresponding to the Si-V-grooves. The roughness of polished fiber surface measured with atomic force microscope (AFM) is in nanometer magnitude
and the position error is 3~5 micron
which shows these works will lay the foundation for further study on two-dimension fiber array.
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references
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