NEETS 24 - Fiber Optic Concepts

Which type of substances either reflect or absorb all the light rays that fall upon them?

What is the index of refraction for glass?

What is the layer of material called that surrounds the core in optical fiber?

What is the layer of material called that surrounds the cladding in optical fiber?

How many different types of rays can propagate along an optical fiber?

Which type of wave is a wave whose surfaces of constant phase are infinite parallel planes normal to the direction of propagation?

What determines how many modes a fiber can support?

Which jacket color is recommended for 50/125 um “Laser Optimized” OM3 and OM4 fiber?

Which type of absorption is caused by basic fiber-material properties?

Which type of losses are caused by the interaction of light with density fluctuations within a fiber?

What is scattering called if the size of the defect is greater than one-tenth of the wavelength of light?

How many different types of dispersion are there?

What is the spectral width of a laser diode?

What specifies the range of wavelengths that can propagate in the fiber?

Which term is given to the phenomenon by which different spectral components of a light pulse travel at different speeds?

Which type of wave motion describes the up and down wave motion that is at a right angle to the outward motion of the waves?

Which law is used to describe the relationship between the incident and the refracted rays at the boundary?

What is the approximate speed of light?

Which law states that “the angle of incidence is equal to the angle of reflection.”?

What are Quanta known as when referring to light energy?

What is the wave called that strikes a reflecting surface?

How many different methods are used to describe how light is transmitted along the optical fiber?

What can be defined as a recurring disturbance advancing through space with or without the use of a physical medium?

Who collected the four fundamental equations that completely describe the behavior of the electromagnetic fields?

Which type of wave motion is represented by the motion of water?

Which type of substances transmit almost all the light waves falling upon them?

What are substances called through which some light rays can pass, but through which objects cannot be seen clearly because the rays are diffused?

What is the angle called between the normal and the path of the light wave through a second medium?

What measures the speed of light in an optical medium?

What is the index of refraction for air?

What is the imaginary line perpendicular to the point at which the incident wave strikes the reflecting surface called?

What is the angle between the incident wave and the normal called?

How many parts does the basic structure of an optical fiber consist of?

Which theory is used to approximate the light acceptance and guiding properties of optical fibers?

Which theory describes the behavior of light within an optical fiber?

Which type of rays pass through the axis of the optical fiber?

Which type of rays travel through an optical fiber without passing through its axis?

Which classification of meridional rays remain in the core and propagate along the axis of the fiber?

What is a measurement of the ability of an optical fiber to capture light?

What are the typical NA values for glass fibers?

Which type of fibers are predominately used in fiber optics because of their low intrinsic material absorption at the wavelengths of operation?

What is an optical fiber that operates above the cutoff wavelength called?

Around how many micrometers (m) is the typical core size of single mode fibers?

Which effect is caused by the different speeds of the individual modes in a light pulse?

What is defined as the portion of attenuation resulting from the conversion of optical power into another form?

What is the spreading of a pulse of light as it travels down the length of an optical fiber that limits the bandwidth or information carrying capacity of a fiber?

What is an optical fiber that operates below the cutoff wavelength called?

What is the spreading of light as light propagates along a fiber called?

What is an optical fiber which is made out of plastic?

What is a set of guided electromagnetic waves called in relation to optical fiber?

What is the exchange of power between two modes called?

How many types are optical fibers classified into?

Over how many modes can be propagated by multimode fibers?

Which type of cable will support 125m links at 40 and 100 Gbit/s?

OM3 fibers provide sufficient bandwidth to support 10 Gigabit Ethernet up to how many meters?

OM4 fibers provide sufficient bandwidth to support 10 Gigabit Ethernet up to how many meters?

What is the maximum modulation rate of LEDs because they cannot be turned on/off fast enough to support higher bandwidth applications?

What is the maximum distance of Hard Clad Silica (HCS) fibers?

Which type of optical fiber has a silica based core and a plastic cladding and in general have significantly lower performance characteristics, higher transmission losses, and lower bandwidths than all glass fibers?

What reduces the amount of optical power transmitted by the fiber?

What are small microscopic bends of the fiber axis that occur mainly when a fiber is cabled?

What spreads the optical pulse as it travels along the fiber?

Which type of dispersion occurs because different wavelengths (colors) also travel at different velocities through a fiber, even in the same mode?

In silica glass, the wavelengths of operation range from 700 nm to how many nm?

Which type of absorption is caused by impurities introduced into the fiber material?

What is the main source of loss called in commercial fibers operating between 700nm and 1600nm wavelength?

Modal dispersion only occurs in which type of fibers?

Which type of dispersion occurs because the mode propagation constant is a function of the size of the fiber’s core relative to the wavelength of operation?

Which type of fiber is waveguide dispersion the most significant?