Optical Signal and Its Transformations
In the first chapter we have noted the most important features of the physical phenomena underlying the holographic method and coherent optical systems. We shall now deal systematically with the theory of holography. We shall begin with a mathematical description of the physical processes occurring in coherent systems and then study holographic and interferometric instruments. We shall present the mathematics in the form of an analysis of the properties of an optical signal carrying certain information. These properties are revealed most clearly by considering the passage of an optical signal through various linear systems. The content of the present chapter and of Chapters 3–5 will be used repeatedly elsewhere in the book.
KeywordsDelta Function Optical Signal Original Function Heaviside Function Rectangular Pulse
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