| 摘要 |
PURPOSE:To obtain a transmission characteristic measuring method without short measuring optical filber omission by connecting a measuring optical fiber, which can be replaced with a short-measuring optical fiber, to one terminal of a measured optical fiber by using a connector. CONSTITUTION:Light from light source 1 is inputted to one terminal of measuring optical fiber 4 after being focused by excitation lens 2. Measuring optical fiber 4 transmits this light to its other terminal, which is connected to connector 5. Of measured optical fiber OF of Lkm in length, one terminal is connected to measuring optical fiber 4 via connector 5, and the other is to photoelectric wattmeter 3. Through the above-mentioned optical connections, light from light source 1 is detected by photoelectric wattmeter 3 to measure photo power, light-intensity information. Before or after this measurement, measuring optical fiber 4 is connnected to photoelectric wattmeter 3 to measure photo power, light-intensity information, in the same way as above. Then, transmission characteristics of measured optical fiber OF are found on the basis of measured values of photo power. |
