ABSTRACT
This chapter examines the application of distributed acoustic sensing (DAS) in security and surveillance using optical fiber sensing cables, which contain regular monomode optical fibers of the same type as those used for telecommunications. International borders are by their very nature difficult to effectively secure. Large sections are often situated in inhospitable areas, far from dense populations. They are therefore often open to infiltration. This offers the potential for illegal intrusion, trafficking, and opportunities for criminal or even terrorist activities. Securing sensitive civilian and military facilities such as airbases, airports, or power stations is of critical importance. The current state of the art of security surveillance has not moved on significantly in the last decade; often, passive fences and security cameras form the only security deterrent to a potential intruder. The specific type of installation required for an application of this nature varies depending on the nature of the perimeter or asset to be secured.
