| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for testing an optical property of an optical fiber device which is capable of conducting loss measurement and reflection loss measurement by easily switching between them without need of processing of an optical fiber end. SOLUTION: A test unit 1 provided with a laser light source 3 and a reflection measurement module 4 incorporating a laser light source and a light receiver are connected with an optical switch 5 is connected with an incident side optical fiber 6a of an optical fiber device 6. An emitting side optical fiber 6b with the end face obliquely cut is connected with a light receiver 2 through an adapter. At the time of loss measurement, a test light from the laser light source 3 is transmitted to the light receiver 2 through the incident side optical fiber 6a, the optical fiber device 6 and the emitting side optical fiber 6b. At the time of reflection loss measurement, by switching the optical switch 5, a test light from a laser light source in the reflection measurement module 4 is transmitted to the optical fiber device 6 through the incident side optical fiber 6a, and the reflected light is transmitted to a light receiver in the reflection measurement module 4. COPYRIGHT: (C)2008,JPO&INPIT
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