Quantum and Optical Electronics: Fundamentals of Laser Engineering is a unique publication created by a team of authors that immerses the reader in the exciting world of laser technology and quantum electronics. This book is a real treasure for students, graduate students and specialists in the field of physics, electronics and engineering, as well as for anyone interested in modern technologies and their application in various fields. The book discusses the basic principles of lasers, starting from quantum phenomena and ending with the practical aspects of their application. The authors carefully explain how light and matter interact at the quantum level, allowing readers to better understand the mechanisms underlying laser technology. Each chapter is filled with interesting examples and illustrations that make complex concepts more accessible and understandable. The book will be especially useful for those who already have basic knowledge in the field of physics and want to expand their horizons. Students of technical specialties, graduate students and young scientists will find in it not only theoretical foundations, but also practical recommendations for the use of lasers in scientific research and industry. It may also be of interest to engineers and developers working in the field of optoelectronics, photonics and laser technology. The topics raised in the book cover a wide range of issues: from the foundations of quantum mechanics to modern advances in laser technology. The authors discuss various types of lasers, their designs and principles of operation, and also consider their application in medicine, telecommunications, materials science and many other fields. The book emphasizes the importance of lasers in the modern world and their impact on the development of technologies, which makes it relevant and in demand. The style of the authors is clear and accessible, which allows the reader to easily absorb complex topics. They use examples from real practice, which makes the material more lively and interesting. The book “Quantum and Optical Electronics: Fundamentals of Laser Engineering” not only teaches, but also inspires further research and experiments in the field of laser technology. If you are looking for literature that will help you understand the intricacies of laser technology, this book will be an excellent choice. It can be the basis for your further study and professional growth. In addition, if you are interested in such works as “Photonics: basics and applications” or “Quantum mechanics for engineers”, then “Quantum and optical electronics” will be a logical continuation of your reading. Do not miss the opportunity to immerse yourself in the world of lasers and quantum electronics with this fascinating and informative book! It will not only expand your knowledge, but also give you new ideas for the application of laser technologies in your professional activities .