Luận Văn Learn about fiber optics Optical

Đề tài: Learn about fiber optics Optical
Hanoi University of Mining and Faculty ofGeology Technology Information Learn about fiber optics Instructor: Msc. Dao Anh Thu 1
Content 1. Optical fiber classification 2. Fiber optics structure 3. The transmission characteristics 4. Advantages and disadvantages 5. Applications 2
Optical fiber classification ã Single-mode ( Ø core 2 - 8 µm). ã Multi-mode continuous extraction (Ø core 50 - 125 µm). ã Multi-level extraction mode (Ø core > 50 µm). 3
Fiber optics structure ã Consists of 3 layers ü Layer core. ü Layer reflects light back to the core. ü Layer protection. 4
Fiber optics structure ã The diameter of the core is very little from 5-150 µm. ã Light in the optical fiber assembly of the infrared and visible light region. ã ​ Core layer made of transparent material, particularly plastic glass. ã To pass light in the core layer refractive index of the core layer is greater than the refractive index of the cladding layer. 5
The transmission ã Adapter: characteristics Optical – Electric. ã Not affected electro-magnetic interference. ã Dispersion is the phenomenon of light. ã Used for transmission of long distance. telecommunications systems. 6
The transmission characteristics The type of fiber optic Fiber optic devices connector convert to copper 7
Advantages and v disadvantages Advantages ã Broadband ã Small size and weight. ã Low attenuation. ã Isolated electromagnetic field. ã The distance between the remote repeater. 8 ã
Advantages and v disadvantages Disadvantages ã Difficult pairing ã The use of a photoelectric conversion 9
Applications ã Communication environment suitable for implementing network services application integrated with broadband. ã Transmission distance. ã Urban Trunk. ã Local network. 10
Applications 11
The End 12