This information-packed reference describes in detail the critical issue of frequency stabilization of semiconductor laser diodes, with emphasis on the practical frequency stabilization schemes of laser diodes and laser modules, and their applications to optical transmission systems, optical measurements, photonics switching systems, and more. Written by three of the world’s foremost authorities on the topic, the book examines the performance characteristics of semiconductor laser diodes and demonstrates how the operation frequency of semiconductor lasers can be stabilized.