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Caustic ray use of the drawdown zone of an optical fiber preform to control the drawing of the fiber
Caustic ray use of the drawdown zone of an optical fiber preform to control the drawing of the fiber
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机译:苛刻射线使用光纤预制棒的回落区来控制光纤的拉伸
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摘要
A technique for monitoring the drawdown zone of an optical fiber preform is disclosed. The technique involves detecting the caustic rays emanating from the drawdown zone. Analysis of these rays allows one to determine the geometric properties of both the drawdown zone and the resultant optical fiber. In addition, detailed information concerning the index of refraction distribution in the fiber may be obtained. The process is amenable to realtime applications during the drawing of an optical fiber.
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