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Fiber exam 2024 with 100% complete solutions

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What is the difference between light and radio freq? correct answersLight uses high freq Radio uses short freq What type of light is used in Fiber Optic Transmissions? correct answersInfrared Light What are the 4 items needed for a fiber optic system to work? correct answersTransmitter, fiber optic cable, receiver, connectors. 1 mW is the same as what in dBM? correct answers0 dBM How is power measured in fiber optic correct answersdBM What is the best wavelength to use in fiber optic transmissions? correct answers1550 nm What wavelengths are most used for communications in fiber optics? correct answersMultimode- 850 nm, 1300 nm Singlemode- 1550 nm When ws fiber optic cable first used for commercial telephones in the United States? correct answersGTE 1977 When using single mode fiber optic cable what is the best light source to use? correct answersLaser Diode (LD) What are the two cheapest light sources used in fiber optics? correct answersLight Emitting Diode (LED) Vertical Cavity Surface Emitting Laser (VCSEL

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