Continuous measuring method of optical fiber transmission characteristic
专利汇可以提供Continuous measuring method of optical fiber transmission characteristic专利检索，专利查询，专利分析的服务。并且PURPOSE:To make it possible to measure a variation of characteristic in the longitudinal direction of the optical fiber, by continuously observing the propagation waveform while wire drawing the optical fiber. CONSTITUTION:An optical pulse generated by a GaAs semiconductor laser is made to perform incidence to the core part of the optical fiber base metal 9 through the condenser lens 5 and the interference filter 6. Subsequently, the optical pulse which has propagated the fiber is detected by fixing the tip of the optical fiber 11 whose wire has been drawn, onto the light receiving surface of the silicon avalanche photodiode 19. And it is input to the sampling oscilloscope 18 through the high- frequency cable 15' after amplifying it by the wide band amplifier, and delaying it by inputting to the delay line 16. On the other hand, a signal which is not delayed is used as a trigger signal of the oscilloscope 18 by the high-frequency cable 17. As mentioned above, a pulse waveform which has propagated is observed continuously while wire drawing. Also, the level observation signal is made a trigger signal, and therefore even if the length of the fiber is varied every moment, an output signal of the fiber can be observed fixedly.，下面是Continuous measuring method of optical fiber transmission characteristic专利的具体信息内容。
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