Optical fiber is a type of guided medium to transport information from one point to another point.Information travels in the form of light.Data capacity of fiber is very high due to light nature of the signal.It has some important properties
- High Bandwidth
- Highly secure
- Easy to install
- Low distortion
- No EMI effect
In this video, we will discuss the optical fiber from the scratch level.First, I will discuss some basic concepts and then we will go for its working
Optical fiber explanation in Urdu and Hindi
Transmission media is a path by which information travels from one point to another point.Now It has two main categories
- Guided media
- Unguided media
It is a transmission path which can not be touched or seen.
wireless communication, satellite communication, microwave communication are the example of unguided media.
It is a transmission path which can be seen and touch.
Fiber optic, twisted pair cable, coaxial cable are the example of guided media.
In this video, we will discuss fiber Optic and its working.
Optical Fiber working
Optical fiber works on the principle of total internal reflection.To understand its working, we must learn the concept of reflection, refraction and critical angle.I explain these definitions in very detail in this video.
Total Internal Reflection
It is the reflection of light in the same medium when the incident angle is greater than the critical angle.
Optical fiber Types.
It has basically two types
- Single mode fiber
- multimode fiber
- Step Index
- Graded Index
Single mode fiber
Single light ray can travel through its core.
Multiple light rays can travel through its core at the same time.
Its core has one refractive index value.
Its core has multiple refractive index values.
Optical time domain reflectometer.It is used to detect the transmission faults of optical fiber