This book covers the entire field of tunable lasers, withthe exception of dye lasers. Following an introductorychapter on common general principles, the remaining chapters- all written by leading experts in the field - each treat aparticular class of tunable laser or process. In each case,a theoretical treatment is combined with a detailedpractical description of the lasers and their operation. Thebook is written so as to be readily accessible toresearchers and students alike. It is especially intended toenable the non-expert to choose the most appropriatetunable laser for a specific application.In this second edition an added chapter with extensivereferences to recent literature reviews the advances thathaveoccured since the publication of the original edition.