| 摘要 |
PURPOSE:To clear each step, by a method wherein the start points of the steps due to connection loss in the waveform displayed on CRT are set as indication points and a places coming near to a terminal side by a length more than the pulse width or more of measuring light from the indication points are set as fixed points while the spaces between the fixed points and the next indication points are displayed in a linearized state. CONSTITUTION:In an optical fiber analyzer wherein a measuring light is incident on an optical fiber 3 from a light source 1 through a directional coupler 2 and the reflected wave thereof is detected by a detector 4 to be displayed on CRT5, start points C21, C22 of the steps caused by the pulse width of measuring light on the displayed wave form C2 of the reflected wave are set as indication points and points C22, C24 coming near to the terminal side by a length two times or more the pulse width from the indication points are set as fixed points. For example, the fixed point C22 and the next indication point C23 are connected by a straight line and the intersecting point of the extended line of said straight line and the perpendicular line from the indication point C21 is set as a point C25 and the attenuation quantity of the step is known from the length between the point C21 and the point C25. |
