Fiber optic numerical aperture testing experimental instrumentStudents can build their own systems, master the method of adjusting optical paths, and intuitively understand the principle of fiber optic numerical aperture measurement. At the same time, they can also conduct fiber optic sensing principle experiments through the existing platform of the instrument, which exercises students' hands-on and brainpower abilities.
Instrument function:
1. Fiber laser optical path adjustment experiment
2. Debugging experiment of optical transceiver system
3. Fiber optic numerical aperture testing experiment
4. Experimental Study on the Relationship between Light Intensity and Displacement Variation Function
5. Experimental study on expanding the principle of fiber optic displacement sensing distance measurement
Experimental configuration and composition:
Hardware components:
Fiber optic calibration platform, 3D adjustment frame, fiber optic jumper, laser light source.
Optical power meter, rotary table (used to adjust the incident angle), fiber optic fine-tuning frame.
Supporting resources: Experimental lecture notes, standard operating procedure documents.
Key precautions:
Precision control:
The angle resolution of the rotary table should be ≤ 0.1 ° to avoid errors caused by mechanical clearances.
Environmental light interference: Turn off indoor lighting or use light shields.
Troubleshooting:
Power reading fluctuation: Check if the fiber fixation is loose and if the laser mode is stable.
No signal output: Confirm that the fiber bending radius is greater than 5cm (to avoid micro bending loss), clean the connection interface.