Describe the role of "modal dispersion" in multimode fiber-optic cables and its implications for data transmission.
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Describe the role of "modal dispersion" in multimode fiber-optic cables and its implications for data transmission.
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- What are the propagation modes in multimode and single-mode fiber-optic cables?How do mode field diameters influence compatibility and performance in fiber-optic connections?Describe the concept of wave division multiplexing (WDM) and its use in increasing the capacity of optical fiber communication.
- Explain the concept of optical amplification and its significance in long-distance optical fiber communication.Explain the concept of wave division multiplexing (WDM) and its significance in increasing the capacity of optical fiber communication systems.How do optical amplifiers work in long-distance optical fiber transmission, and what are their benefits in reducing signal loss?
- How does the shielding in a coaxial cable affect its performance in transmitting data, and in what situations is it preferred over unshielded cables?Explain the concept of shielded vs. unshielded twisted pair (STP vs. UTP) cables and their respective applications.Describe the basic principles of guided transmission media, such as twisted pair, coaxial cable, and optical fiber. How do they differ in terms of data transmission characteristics?