Abstract

ABSTRACT The invention of the laser in 1960 created the possibility of using a source of coherent light as a transmit ter for a laserradar(ladar). Coherent ladar shares many of the basic features of more common microwave radars. However, it is theex tremely short operating wavelength of lasers that introduces new military applications, esp ecially in the area of missile identification, space target tracking, remote rang finding, camouflage discrimination and toxic agent detection.There fore, the most popular application field such as laser imaging and ranging were focused on CO 2 laser in the last few decades. But during the development of solid state and fiber laser, some people said that the CO 2 laser will be disappeared and will be replaced by the solid and fiber lase r in the field of military and industry. The coherent CO 2 laser radar will have the same destiny in the field of military affairs. However, to my opinion, the high power CO 2 laser will be the most important laser source for laser radar and countermeasure in the future. Keywords: CO

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