Extrinsic Attenuation
Extrinsic attenuation is the loss that is caused by external factors. It happens from Radiative loss(bending loss) and coupling loss(splicing and connector loss).
Radioactive Losses
It occurs when a fiber undergoes a bend. Fiber bends are of two types macro bends and micro bends.
- Macro bending loss happens if the radius of the core is larger than the fiber diameter then it may cause large curvature at the positions where the fiber is bend and light will escape.
- Micro bending loss happens due repetitive small scale fluctuations caused by non-uniformities inside the fiber which appears due to non uniform pressure during cabling or during manufacturing.
Coupling Losses
- Fiber optic splicing also causes losses. By joining two optical fibers end to end splicing aims to ensure that the light passing through it is almost as strong as the original wire without any joins. Splicing loss value is generally 0.05dB to 0.3dB.
- Connector losses or insertion losses in optical fiber results from the insertion of a device in a transmission line or optical fiber. This loss is generally around 0.3dB to 0.75dB.
Attenuation
In this article, we will be discussing about attenuation. We will also discuss about attenuation in optical fiber and networking. We will look into the various factors that causes attenuation in optical fiber and networking. We will discuss about attenuation coefficient. We also will discuss how can we measure attenuation and the methods that are available to measure. In addition to this, we will discuss how can attenuation be prevented. We will also compare attenuation with amplification and see their differences. Later in this article, we will discuss about the various advantages, disadvantages and application of attenuation.
Table of Content
- What is Attenuation?
- Attenuation in Optical Fiber
- Methods
- How Attenuation can be Prevented?
- Attenuation Vs Amplification
- Advantages of Attenuation
- Disadvantages of Attenuation
- Applications of Attenuation
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