| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical pulse testing device with light source function which measures a multimode optical fiber as a measuring object, and can stabilize optical intensity of a measuring beam without increasing the size of the optical pulse testing device.SOLUTION: The optical pulse testing device comprises: a first light reception unit for receiving monitor light emitted from a laser diode and converting the monitor light into an electric signal; a second light reception unit for receiving other parts of an emission beam passing through an optical coupler as a branched beam and converting the branched beam into an electric signal; a first power detection unit for detecting power of the monitor light received by the first light reception unit; a second power detection unit for detecting power of the branched beam received by the second light reception unit; and an optical intensity control unit for stabilizing optical intensity of the emission beam so that optical intensity of a measuring beam reaches a predetermined value, based on power of the monitor light and power of the branched beam. |
