DATA COMMUNICATION PRINCIPLES Optical Fiber Cable OFC Optical

DATA COMMUNICATION PRINCIPLES : Optical Fiber Cable (OFC)

Optical Fiber Cable (OFC) The OFC is a very thin glass or plastic cable consisting of three concentric cylinders: the innermost core, the outer-most jacket and the cladding in-between. Typical diameters vary from a few µm to about a 100 µm. Figure 4 -6 shows one of the several types of optical fiber cable. The jacket is made of plastic or some other insulating material to protect the core and cladding. Signal travels in the core. The optical properties of the cladding are different from those of the core. Eve since The OFC has taken the telecommunications market by storm. Much of the coaxial cable in long distance telephone networks in advanced countries has already been replaced by OFC. Cables have been laid down through the oceans among many countries in the world. Due to bandwidth in access of 1 GHz, OFC is suitable for broadband long distance communications needs. However, the transmitter and receiver technologies are still dominated by electronic components. Consequently, the real benefit of OFC to the end-user will be pouring in when the electronic devices with comparable speeds are commercially available.

REFERENCES • Ahmad A. - Data Communication Principles. For Fixed and Wireless Networks • Cornelius T. Leondes - Database and Data Communication Network Systems, Three-Volume Set_. . -Academic Press