Quality fiber-end preparation is essential for proper system operation. What properties must an optical fiber-end face have to ensure proper fiber connection?

Quality fiber-end preparation is essential for proper system  operation. What properties must an optical fiber-end face have  to ensure proper fiber connection?
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1 Answer

Answer :

Be flat, smooth, and perpendicular to the fiber axis.
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Related questions

Modal dispersion affects the bandwidth of multimode systems. It is essential to adjust what three fiber properties to maximize system bandwidth?

Description : Modal dispersion affects the bandwidth of multimode systems. It is essential to adjust what three fiber properties to maximize system bandwidth?

Last Answer : Core diameter, NA, and index profile properties.

What connection properties result in fiber optic connector coupling loss?

Description : What connection properties result in fiber optic connector coupling loss?

Last Answer : Poor fiber alignment and end preparation, fiber mismatches, and Fresnel reflection.

Using a standard microscope to inspect a fiber-end face, you observe that all parts of the fiberend face are in focus at the same time. Is the fiber-end face flat, concave, or convex?

Description : Using a standard microscope to inspect a fiber-end face, you observe that all parts of the fiberend face are in focus at the same time. Is the fiber-end face flat, concave, or convex?

Last Answer : Flat.

Which type of optical splitter (Y-coupler or T-coupler) splits only a small amount of power from the input fiber to one of the output fibers?

Description : Which type of optical splitter (Y-coupler or T-coupler) splits only a small amount of power from the input fiber to one of the output fibers?

Last Answer : T-coupler

Which type of fiber optic connector (butt-jointed or expanded beam) brings the prepared ends of two optical fibers into close contact?

Description : Which type of fiber optic connector (butt-jointed or expanded beam) brings the prepared ends of two optical fibers into close contact?

Last Answer : Butt-jointed connectors.

What is the basic fiber cleaving technique for preparing optical fibers for coupling?

Description : What is the basic fiber cleaving technique for preparing optical fibers for coupling?

Last Answer : Score-and-break.

Which types of LEDs are the preferred optical sources for short-distance, low-data-rate fiber optic systems?

Description : Which types of LEDs are the preferred optical sources for short-distance, low-data-rate fiber optic systems?

Last Answer : SLEDs and ELEDs.

The amount of optical power coupled into an optical fiber depends on what four factors?

Description : The amount of optical power coupled into an optical fiber depends on what four factors?

Last Answer : (1) The angles over which the light is emitted. (2) The size of the source's light-emitting area relative to the fiber core size. (3) The alignment of the source and fiber. (4) The coupling characteristics of the fiber (such as the NA and the refractive index profile)

Which part of a fiber optic transmitter converts the processed electrical signal to an optical signal?

Description : Which part of a fiber optic transmitter converts the processed electrical signal to an optical signal?

Last Answer : The optical source.

Describe an optical fiber cable component (OFCC).

Description : Describe an optical fiber cable component (OFCC).

Last Answer : OFCCs are tight-buffer fiber surrounded by arimid yarn and a low-halogen outer jacket.

Give two reasons why optical fiber manufacturers depart from the traditional circular core and cladding, low-loss glass fiber design?

Description : Give two reasons why optical fiber manufacturers depart from the traditional circular core and cladding, low-loss glass fiber design?

Last Answer : To increase performance and reduce cost

Multimode optical fibers can have a step-index or graded index refractive index profile. Which fiber, multimode step-index or multimode graded-index fiber, usually performs better?

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Last Answer : Multimode graded-index fiber

List the two principal optical detectors used in fiber optic systems.

Description : List the two principal optical detectors used in fiber optic systems.

Last Answer : The semiconductor positive-intrinsic-negative (PIN) photodiode and avalanche photodiode (APD).

If an installed optical fiber cable does not have connectors or terminations on both ends, how should the cable be tested?

Description : If an installed optical fiber cable does not have connectors or terminations on both ends, how should the cable be tested?

Last Answer : With an OTDR unless it is less than 50 meters in length. If it is less than 50 meters in length, continuity should be verified with a flashlight.

When is an optical power meter measurement recommended for conducting field measurements on installed optical fiber cables or cable plants?

Description : When is an optical power meter measurement recommended for conducting field measurements on installed optical fiber cables or cable plants?

Last Answer : When an installed optical fiber cable or cable plant is less than 50 meters in length.

Delay differences between the source wavelengths occur as the optical signal propagates along the fiber. What is this called?

Description : Delay differences between the source wavelengths occur as the optical signal propagates along the fiber. What is this called?

Last Answer : Differential group delay t(l).

A mode filter is a device that attenuates specific modes propagating in the core of an optical fiber. What mode propagating along single mode fibers do mode filters eliminate?

Description : A mode filter is a device that attenuates specific modes propagating in the core of an optical fiber. What mode propagating along single mode fibers do mode filters eliminate?

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optical launch conditions exists if the launch spot size and angular distribution are larger than that of the fiber core?

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Last Answer : Overfilled.

Does underfilling a multimode optical fiber excite mainly high-order or low-order modes?

Description : Does underfilling a multimode optical fiber excite mainly high-order or low-order modes?

Last Answer : Low-order modes.

What are the main causes of absorption in optical fiber?

Description : What are the main causes of absorption in optical fiber?

Last Answer : Intrinsic and extrinsic material properties.

What type of optical fiber operates below the cutoff

Description : What type of optical fiber operates below the cutoff

Last Answer : The order of a mode is indicated by the number of field maxima within the core of the fiber. The order of a mode is also determined by the angle that the wavefront makes with the axis of the fiber

A light ray incident on the optical fiber core is propagated along the fiber. Is the angle of incidence of the light ray entering the fiber larger or smaller than the acceptance angle

Description : A light ray incident on the optical fiber core is propagated along the fiber. Is the angle of incidence of the light ray entering the fiber larger or smaller than the acceptance angle

Last Answer : Smaller.

List the three parts of an optical fiber.

Description : List the three parts of an optical fiber.

Last Answer : Core, cladding, and coating or buffer.

The index of refraction measures the speed of light in an optical fiber. Will light travel faster in an optically dense material or in one that is less dense?

Description : The index of refraction measures the speed of light in an optical fiber. Will light travel faster in an optically dense material or in one that is less dense?

Last Answer : Light will travel faster in an optical material that is less dense.

What is the basic optical-material property relevant to optical fiber light transmission?

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Two methods describe how light propagates along an optical fiber. These methods define two theories of light propagation. What do we call these two theories?

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Low-order and high-order modes propagate along an optical fiber. How are modes determined to be low-order or high order modes?

Description : Low-order and high-order modes propagate along an optical fiber. How are modes determined to be low-order or high order modes?

Last Answer : Depends on the bending caused by the velocity difference of the wave traveling through different mediums

Which type of optical fiber (multimode or single mode) tends to have lower loss and produces less signal distortion?

Description : Which type of optical fiber (multimode or single mode) tends to have lower loss and produces less signal distortion?

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In 1969, what did several scientists conclude about optical fiber loss?

Description : In 1969, what did several scientists conclude about optical fiber loss?

Last Answer : mpurities in the fiber material caused the signal loss in optical fibers. The basic fiber material did not prevent the light signal from reaching the end of the fiber.

What mechanisms in the fiber waveguides weaken and distort the optical signal?

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Which fiber optic component (splice, connector, or coupler) makes a permanent connection in a distributed system?

Description : Which fiber optic component (splice, connector, or coupler) makes a permanent connection in a distributed system?

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Description : Define the loss in optical power through a connection.

Last Answer : loss = 10log

The amount of backscattered optical power at each point depends on what two properties?

Description : The amount of backscattered optical power at each point depends on what two properties?

Last Answer : Forward optical power and backscatter capture coefficient.

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Description : Which is not a possible cause of optical fiber loss? ∙ a. Impurities ∙ b. Glass attenuation ∙ c. Stepped index operation ∙ d. Microbending

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Description : Describe the operation of an optical detector

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What two preventive maintenance actions must you do regularly to increase magnetic head life and to ensure good tape recording and playback?

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What two properties of the launch condition may affect multimode fiber attenuation measurements?

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Description : A device that reduces the intensity of light in fiber optics communication systems. A. Reducer B. Quality factor C. Optical attenuator D. Compressor

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Description : What type of bias is required for proper operation of a photodiode?

Last Answer : Reverse bias.

What are the required radar inputs for proper indicator operation?

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For safety, you should never ____________________ at the end of an optical fiber unless you know it is not connected to a light source.

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What generator characteristics must be considered when alternators are synchronized for parallel operation?

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Last Answer : Output voltage, frequency, and phase relationships.

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Description : In replacing a defective transformer with a new one, which of the following actions must be carried out to insure proper operation of the equipment it serves? A. The secondary leads must be grounded ... magnetize it. D. The iron core must be grounded for 10 minutes to remove any residual magnetism.

Last Answer : Answer: B

Why is it essential to clean the excess weld metal on completion of the production weld? a) So it can be ready for painting b) To remove any rust c) To ensure it is suitably clean for visual inspection and NDT d) To remove slag from the undercut

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Last Answer : c) To ensure it is suitably clean for visual inspection and NDT

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When preparing a website, designers should ensure that the site makes effective use of the text, pictures and video. This design feature is known as _________. a. communication b.connection c . c o n t e n t d . c o n t e x t

Description : When preparing a website, designers should ensure that the site makes effective use of the text, pictures and video. This design feature is known as _________. a. communication b.connection c . c o n t e n t d . c o n t e x t

Last Answer : c . c o n t e n t