CA-1420 Optical Time Domain Reflectometry
Educational Objectives
- Pulsed Laser Module
- Optical Fiber
- InGaAs Photodetector
- Fiber Handling and Preparation
- Coupling Light to Fiber
- Reflected Light Echoes
- Properties of Glass Fibers
- Speed of Light
After assembling the complete OTDR set reflectometry measurements can be performed. Short pulses (< 5 ns) are coupled in a 1 km multimode fiber. The fiber ends are prepared by Miller pliers and a fiber cleaver. A trigger signal generated by reference pulses starts the measurement. The time of flight of the light backscattered by the fiber ends determines the length of the fiber. A fiber-fiber coupling module introduces an air gap between two fibers and simulates a distortion of the fiber. Furthermore, measurements for pulsed laser characterization and most of the measurements of the Glass Fiber Optics kit (CA-1410) can be performed.
Order No. 4900-9-1420