Fiber Optic Study Guide Questions & Answers With Complete Solution

Higher and Shorter - Answer Light is electromagnetic energy with a _______ frequency and a _______ wavelength compared to radios Infrared (IR) - Answer What type of light is used in Fiber Optic transmissions? Transmitter Fiber Optic Cable Receiver Connector - Answer What are the 4 items needed for a fiber optic system to work? 0 dBM - Answer 1 mW is the same as what in dBM? dBM - Answer How is the power measured in Fiber optics? 1550 nm - Answer What fiber optic wavelength has the lowest loss? 1300, 1550, 850 - Answer What wavelengths windows are used most for communication in optical fibers? 1977 - Answer What year was fiber optic cable first used in commercial telephone systems in the U.S.? Laser-diode - Answer What light source is used for single mode fiber? LED and VCSEL - Answer What two light sources are used with multimode fiber? False, Different wavelengths of light travel at different velocities - Answer All wavelengths of light travel at the same speed. True o False. Why? Multimode - Answer Which type of fiber has the larger core size? Single mode or multimode? OSHA is responsible for enforcing it's standards on regulated entities - Answer What is OSHA responsible for? 1. USE A SMALLER CORE 2. Use Graded-index Fiber - Answer What are two ways to reduce modal dispersion?