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Optoelectronics -the study of optics and electronics- affects our everyday lives from the basic use of computers and home entertainment systems to the complex areas of medical science and telecommunications. This introductory-level lab manual introduces the basic concepts of optoelectronics and can be used in any courses dealing with applied physics, fiber optics, or electronic devices. Beginning with a review of topics, such as light characteristics, optical switches, light emitters and detectors, users then develop their own optoelectronics circuits that will be used in conducting experiments. Key Feature Experiments provide the opportunity to build, test, and understand optoelectronics circuits without the use of complex equipment Numerous review questions provide reinforcement and build critical thinking skills Step-by-step approach from theory to hands-on experiments reinforce stronger understanding Table of Contents 1. Power Supplies 2. An Introduction to Light-Basic Concepts 3. Light Emitters-Green Leds 4. Light Detectors-Photo resistors 5. Optical Switch-A Photo resistor Application 6. Light Emitters-Red Leds 7. Light Emitters-Infrared Leds 8. Light Detectors-Phototransistors 9. Light Detectors-Photovoltaic Cells 10. Optical Switch-A Phototransistor Application 11. Optical Switch-An Oscillator-Phototransistor Application 12. An Introduction to Light-Complex Concepts