Abstract

The photonic crystal fiber is new version of optical fiber. These have overcome major limitations of classical\nfibers. The history of photonic crystal fiber is discussed along with analogy that exists between electron and photon. For this\npaper we aim at discussing the basic concepts of photonic crystal, light guiding mechanism, important properties and potential\napplications of PCFs. This paper aims at describing properties, applications, fabrication of photonic crystal fibers. The\nfreedom of changing the diameter of capillaries and lattice constant made possible the widespread use of photonic crystal\nfiber in many applications.