Abstract: The primary aim of this paper is to highlight the importance of vital components used in the emerging field of wireless Optical Communication System. As the optical fibre is the choice of today’s era for long distance transmission of signals as it gives a maximum transmission bit rate plus being a reliable source of transmission of signals without compromising much over long distance transmission losses to the surrounding medium. For the proper understanding of optical fibre communication systems it is indispensible to have a fair knowledge of these components and to know the basic principles on which this most emerging system of communication works.

Keywords: Wireless optical communication, transmission, bit rate, losses, components