Foa cfot stuvia Study guides, Class notes & Summaries

The _______ is used perform a continuity check A: Mircoscrop B. SPOT C. Termination Tray D. Adhesive - Answer B. SPOT The Student Workstation contains two A. Termination Tray B. Cables C. SPOTs D. Scribes - Answer Termination Tray The Instructer workstion contains three additional A. Cable B. Scribes C. Termination Tray D. SPOTs - Answer SPOTs The Sharp Disposal United Should never be opened A. True B. False - Answer True The _________ is used to peform a connector...

Electromagnetic wave behavior is used to describe the propagation of light along the fiber in what theory? - Answer Mode theory Compared to single mode fibers, multimode fibers have which of the following advantages? - Answer ease of both making connections and launching light into them Only in multimode fibers does which of the following types of dispersion occur? - Answer Modal When different colors of light travel through the fiber at different speeds, which of the following types...

Medium used to send information - Answer light What are the four parts of a fiber optic data link - Answer transmitter, optical fiber, connectors/splices, receiver fiber optic transmitter has which of the following functions - Answer converts the electrical input signal to an optical signal Fiber optic systems used what three type of optical sources - Answer LEDs, lasers, VCSEL(vertical cavity surface emitting lasers) fiber optic receiver performs which of the following functions? - ...

Fiber optic cable lengths are generally expressed in? - Answer Meter, kilometer. Fiber optic cable diameters are expressed in? - Answer Micron The center of the fiber where light is transmitted is called? - Answer Core the outside optical layer of the fiber that traps the light in the core and guides it along is the? - Answer Cladding A hard plastic coating on the outside of the fiber that protects the glass from moisture or physical damage is called the? - Answer Buffer coating A...

Total internal reflection - Answer Trapping light in a material (fiber optic) by surrounding it by another material with a lower refractive index is the phenomenon of Index of Refraction - Answer Ration of Speed of light in a material/Speed of light in a vacuum Measure to how much light slows down when entering a material Attenuation - Answer The reduction in optical power (Loss) as it passes along a fiber, usually expressed in dB Optical fiber data link is made of 3 elements - Answer...

A fiber optic inspector microscope can increase the danger of high powerd light source by focusing the light out of a fiber into your eyes. - Answer True A fiber optic power meter measures absolute power in dBm (dB reference to 1 mw) and when a light source measures insertions loss in dB. - Answer True Confining light in a material by surrounding it by another material with lower refractive index is the phenomenon of - Answer Total internal reflection The largest cause of attenuation in...

What are the two basic types of fiber? - Answer - Multi-mode - Single-mode What are the three parts of an optical fiber? (Hint, 3 C's) - Answer - core - cladding - coating The North American Standard core sizes for multimode fiber are ____ and ____. - Answer - 52.5 microns - 50 microns The core size for Corning single-mode fiber is ____. - Answer - 8.2 - 8.3 microns The cladding size for both single-mode and multimode fiber is ____. - Answer - 125 microns What invention in ...

A transducer - Answer changes energy from one form to another. From the choice below, identify the three basic components of a Fiber optic system - Answer Source, Detector and Cabling. A Source - Answer is an Active part of an optic system Which of the following provides the most self protection? - Answer Long pants The operational wavelengths that are used in Fiber Optic Systems are primarily determined by - Answer The properties of the glass used in the fiber cable The following...

The cutback method is a test procedure used to - Answer Losses in a fiber optic cable (Attenuation) The type of device formed when fibers are wrapped together at a common point and heated is a __________. - Answer Fused star splitter A numerical aperture mismatch occurs when the ___________. - Answer NA of the transmitting fiber is larger than that of the receiving fiber. How is a fusion splice made? - Answer By butting the tips of two fibers and melting them together. (Page 38, 9.2.1) ...

Mass fusion splicing is normally used on what style of cable? - Answer Ribbon Cable ties used on fiber optic cables ____. - Answer Can harm cables if too tight, so they should be hand-tightened. Which of the following represents a singlemode fiber size? - Answer 9/125 micron To reduce _____ as well as loss, the end of a connector ferrule is polished to a PC (physical contact) finish. - Answer Reflectance