CERTIFIED FIBER OPTICS FINAL EXAM, QUESTIONS AND VERIFIED ANSWERS
The applications of optical fiber communications have increased at a rapid rate, since the first
commercial instillation of a fiber optic system in the - answer 1970's
The loss of a signal strength is called - answer attenuation
A single binary digit Is called a - answer Bit
An eight bit group is called a - answer Bite
The _______ is used to express gain or loss in a fiber optic system or component - answer
Decibel
1mw of power is ___dbm - answer 0 dbm
A loss of 3dbm is a _____ percent loss in power. - answer 50%
Power is measured ______in a fiber optic system - answer dbm
Loss is measured in____ in a fiber optic system - answer db
light is electromagnetic energy with a ____wavelength and ____ frequency than radio waves -
answer shorter, higher
The _____ is used to measure light - answer measure
the deflection of light is called_____ - answer refraction
, when light passes from one medium to another some of the light energy is _____back into the
first material - answer Reflected
The refractive index profile describes the relation between the indices of ____ and ______.The
core of the multimode optical fiber has the highest refractive index. - answer Core, Cladding
What makes up an optical fiber - answer core, cladding, coating
mode is another name for - answer Path
single mode fiber have a _____core than multimode fibers - answer smaller
the part of the multimode optical fiber that functions as a mode filter is the______ - answer
cladding
The standard core diameters of multimode fiber are___ and ___um. - answer 50nm, 62.5
_______strength is the ability of a fiber to be stretched or pulled without breaking - answer
Tensile
The Tensile strength of a fiber is_______ when it is bent - answer Refracted
The number of modes in an optical fiber decreases as the ___increases - answer Wavelength
Bandwidth is and effective indication of the rate at which____ can be sent - answer Intelligence
The applications of optical fiber communications have increased at a rapid rate, since the first
commercial instillation of a fiber optic system in the - answer 1970's
The loss of a signal strength is called - answer attenuation
A single binary digit Is called a - answer Bit
An eight bit group is called a - answer Bite
The _______ is used to express gain or loss in a fiber optic system or component - answer
Decibel
1mw of power is ___dbm - answer 0 dbm
A loss of 3dbm is a _____ percent loss in power. - answer 50%
Power is measured ______in a fiber optic system - answer dbm
Loss is measured in____ in a fiber optic system - answer db
light is electromagnetic energy with a ____wavelength and ____ frequency than radio waves -
answer shorter, higher
The _____ is used to measure light - answer measure
the deflection of light is called_____ - answer refraction
, when light passes from one medium to another some of the light energy is _____back into the
first material - answer Reflected
The refractive index profile describes the relation between the indices of ____ and ______.The
core of the multimode optical fiber has the highest refractive index. - answer Core, Cladding
What makes up an optical fiber - answer core, cladding, coating
mode is another name for - answer Path
single mode fiber have a _____core than multimode fibers - answer smaller
the part of the multimode optical fiber that functions as a mode filter is the______ - answer
cladding
The standard core diameters of multimode fiber are___ and ___um. - answer 50nm, 62.5
_______strength is the ability of a fiber to be stretched or pulled without breaking - answer
Tensile
The Tensile strength of a fiber is_______ when it is bent - answer Refracted
The number of modes in an optical fiber decreases as the ___increases - answer Wavelength
Bandwidth is and effective indication of the rate at which____ can be sent - answer Intelligence
