Question

Which of the following groups describes the components in a fiber optic link

Answer 1

The main components of a fiber optic link are the optical fibers, which are made of a core and cladding for total internal reflection, and the transmission equipment including lasers and photodetectors, along with repeaters for long-distance communication.

Step-by-step explanation:

The components of a fiber optic link include the optical fiber itself, which consists of a core and a cladding that ensures total internal reflection. These fibers guide the transmission of light, enabling high-speed communications such as internet, telephone, and cable TV signals. The core of the optical fiber is made from plastic or glass with a high index of refraction, while the cladding material has a lower index of refraction. The high bandwidth, low loss, and reduced crosstalk are key properties that contribute to the efficiency and superiority of these systems over traditional copper-based communication systems. The protective layer around the cladding adds durability and flexibility, allowing the fibers to be routed around corners and through various environments, even under the ocean and underground.

Another essential aspect of optical fiber links is the transmission equipment, which includes lasers that produce the light signals, and photodetectors which receive them. These components function at both ends of the fiber optic link. In addition, repeaters or amplifiers are placed at intervals along long-distance fiber optic cables to boost the signal and preserve its integrity, ensuring that the communication remains clear even over vast distances.

Answer 2

In a fiber-optic link, the components typically include a transmitter, a receiver, an optical fiber, and connectors (Option B).

Step-by-step explanation:

The components that constitute a basic fiber-optic link include a transmitter, which converts electrical signals into light signals; an optical fiber, which carries the light; a receiver, which converts light signals back into electrical signals; and connectors, which join different segments of optical fiber and attach fibers to the transmitter and receiver.

Fiber optics use the principle of total internal reflection, allowing light to travel long distances with minimal loss, ensuring high bandwidth and reduced crosstalk among signals, which are crucial properties for effective communication. The cladding around the optical fiber, having a lower index of refraction than the core, further ensures that light remains within the core, preventing loss and crosstalk.

Therefore, for the given options, B. Transmitter, receiver, optical fiber, connectors most accurately describes the essential components in a fiber-optic link.

Your question is incomplete, but most probably your full question was

Which of the following groups describes the components in a fiber-optic link?

A. Transmitter, receiver, optical fiber, decoder

B. Transmitter, receiver, optical fiber, connectors

C. Transmitter, receiver, optical fiber

D. Transmitter, receiver, optical fiber, cabling