The book is unique because it treats and Nonlinear Optics as two sides of the same coin. You cannot truly understand the high-intensity applications of nonlinear phenomena without first understanding the coherent source that makes them possible: the laser. 2. Clarity of Mathematical Derivations
Aim for the 2nd or 3rd edition of the PDF. Avoid grayscale, camera-scanned versions. Look for files with "OCR" in the metadata. Once you have the top copy, study chapters 6 (Lasers) and 12 (Nonlinear Phenomena) back-to-back. That is where the magic happens. laser and nonlinear optics by bblaud pdf top