On-line optical fiber grating preparing system
A technology for preparing systems and fiber gratings, applied in cladding fibers, optical waveguides, optical mechanical equipment, etc., can solve the problems of laser beam uniformity, laser pulse stability, low coherence of laser beam aiming point stability, and poor quality of grating arrays. High reflectivity, affecting grating consistency, etc., to achieve high reflectivity consistency, good grating spectral shape, good uniformity and stability
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[0020] Embodiments of the present invention are further described below with reference to the accompanying drawings.
[0021] It consists of a drawing tower and a writing grating device, including a drawing furnace 2 and a preform clamping and feeding device 1 installed above the drawing furnace. A bare fiber caliper 3 is installed below the outlet of the drawing furnace. A writing grating device 5 is installed below the bare optical fiber 4, and a first-level coater 6 and a first-level ultraviolet curing furnace 7, a second-level coating device 8 and a second-level ultraviolet curing furnace are sequentially arranged below the writing grating device along the vertical downward direction of the bare fiber 4. Curing furnace 9, a fiber optic caliper 10 is installed under the secondary ultraviolet curing furnace to detect the outer diameter of the coated optical fiber 11, and the coated optical fiber is then transferred to the spinning wheel 13 through the tension measuring instru...
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