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Communications
The ratio of the number of photoelectrons collected to the number of incident photons per unit time
Communications
The index of refraction of the core in a fiber-optic cable is _____ the index of refraction of the cladding
Communications
Which of the following is not an advantage of optical fiber?
Communications
The dielectric material of an optical fiber surrounding the core
Communications
What devices may be used as an optical fiber transmitter?
Communications
It is the scattering of some of the light energy when monochromatic light is passed through a medium such as glass.
Communications
What is the spreading of energy in time, which is caused by differing light wavelengths?
Communications
Which of the following is not a source of attenuation in a fiber-optic cable?
Communications
An object farther from a converging lens than its focal point always has an _____ image
Communications
Fiber optic cable operates near _____ frequencies.
Communications
The rays comprising a mode that all passes through the longitudinal, or z-axis of the fiber core, are called
Communications
The wavelength of red in the visible light spectrum is around ____
Communications
The amount of power per unit area in optical fiber is called _____.
Communications
The glass inside the fiber core must have a(n) _____ index of refraction than the index of refraction of cladding surrounding the fiber
Communications
Responsivity is a parameter of the _____, in fiber-optic system
Communications
An advantage of optic fiber rejecting an induced noise signals from magnetic field or solar storms flux.
Communications
The loss in signal power as light travels down a fiber is
Communications
What type of optical transmitter requires no cladding on the fiber?
Communications
One of the advantages of fiber optic which is referred to the volume of capacity of signals it can carry
Communications
What does a light traveling in air optical fiber follow?
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