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Fiber Optic Serial Communication

Roy Timpe, P.E.

Ever look at fiber in a conduit and wonder about what is going on inside that plastic jacket? Ever wonder about how you can get information sent to you from a computer in another continent, and not pay for the computer time, or the long distance transmission? This has been made possible by the great reduction of the cost of data transmission, largely due to fiber optics. The goal is to familiarize the reader with the typical serial communication schemes used in fiber optic systems. Concepts of evaluating signal quality are introduced, as well as some theory of operation of the systems as well as sampling oscilloscopes. Metrics such as inter-symbol interference, jitter, and signal to noise are introduced. The idea of stressed EYE testing of receivers is explained. The IEEE 802.3aq standard for 10GBASE-LRM is used as an example for several of these concepts. It would be helpful, but not necessary, that the reader have some familiarity with the concepts of semiconductor laser, detectors, and modulators. Laser safety is also introduced as it applies to these fiber optic systems.

This course includes a multiple-choice quiz at the end, which is designed to enhance the understanding of the course materials.

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NY PE & PLS: You must choose courses that are technical in nature or related to matters of laws and ethics contributing to the health and welfare of the public. NY Board does not accept courses related to office management, risk management, leadership, marketing, accounting, financial planning, real estate, and basic CAD. Specific course topics that are on the borderline and are not acceptable by the NY Board have been noted under the course description on our website.