Photonics, the science of generating, detecting, and manipulating light, stands as one of the pillars of modern technology. From the fiber-optic cables that power the global internet to the laser scanners in grocery stores and advanced medical imaging devices, the applications of photonics are boundless. For engineering students and physicists trying to master this complex field, the "Fundamentals of Photonics" by Bahaa E. A. Saleh and Malvin Carl Teich is widely regarded as the seminal textbook.