Fibre Optics certified 2025 exam with
actual questions and correct answers.A+
grade guaranteed
What is TIR used for - CORRECT ANSWER-Reflecting light along optical fibres
What are some of the uses of fibre optics - CORRECT ANSWER-Communications, such as telephone and
internet transmission
Medical imaging, such as endosopes
What is the role of cladding - CORRECT ANSWER-Protect the thin core from damage and scratching
Prevent signal degradation through light escaping the core, which can cause information from the signal
to be lost
It keeps the signals secure and maintains the original signal quality
It keeps the core separate from other fibres preventing information crossover
What causes pulse broadening - CORRECT ANSWER-Material and modal dispersion
What is pulse broadening - CORRECT ANSWER-Where the pulses emerging from the fibre are longer
than those entering
What are the three main components of optical fibres - CORRECT ANSWER-An optically dense core tube,
made of plastic or glass
A lower optically dense cladding surrounding the core
An outer sheath
How can pulse broadening be reduced - CORRECT ANSWER-Use a core that is as narrow as possible to
reduce the possible differences in the path length of the signal
Use of a monochromatic source so the speed of the pulse is constant
Use optical fibre repeaters so the pulse is regenerated before significant pulse broadening has taken
place
Use a single-mode fibre, where only a single wavelength of light passes through the core, to reduce
multipath dispersion
actual questions and correct answers.A+
grade guaranteed
What is TIR used for - CORRECT ANSWER-Reflecting light along optical fibres
What are some of the uses of fibre optics - CORRECT ANSWER-Communications, such as telephone and
internet transmission
Medical imaging, such as endosopes
What is the role of cladding - CORRECT ANSWER-Protect the thin core from damage and scratching
Prevent signal degradation through light escaping the core, which can cause information from the signal
to be lost
It keeps the signals secure and maintains the original signal quality
It keeps the core separate from other fibres preventing information crossover
What causes pulse broadening - CORRECT ANSWER-Material and modal dispersion
What is pulse broadening - CORRECT ANSWER-Where the pulses emerging from the fibre are longer
than those entering
What are the three main components of optical fibres - CORRECT ANSWER-An optically dense core tube,
made of plastic or glass
A lower optically dense cladding surrounding the core
An outer sheath
How can pulse broadening be reduced - CORRECT ANSWER-Use a core that is as narrow as possible to
reduce the possible differences in the path length of the signal
Use of a monochromatic source so the speed of the pulse is constant
Use optical fibre repeaters so the pulse is regenerated before significant pulse broadening has taken
place
Use a single-mode fibre, where only a single wavelength of light passes through the core, to reduce
multipath dispersion
