Shedding light on the subject, this unique new book teaches photonics - electronic devices that manage light and electricity - through hands-on measurement techniques common to all photonic devices. Learn these techniques and you can characterize and understand any device and master the field. It includes discussions on Lasers, Photodiodes, LEDs, and Photoconductors. This practice-based tutorial, perfect for students and engineers looking for practical expertise rather than abstract theory, does more than explain the workings of photonic applications in common devices like lasers and photodetectors. It offers worked examples of measurement and characterization problems faced in everyday encounters with commercial photonic equipment; hands-on Photonics; all experiments can be done with commonly available devices; experiments enable solid engineering judgment; develop real-world problem-solving skills; Math for device analysis; not theory; get characterization basics that apply to all photonics; and analyze, characterize, and handle any kind of photonic device using the fundamental measurement techniques in this book.