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We present a comparative study of different FiberWireless networks with regards to their applications, architecture, hardware complexity, development costs, offered services and allocated bandwidths. While spectral resources and high data-rates are incessantly requested, these Radio over Fiber (RoF) networks have been proposed to overcome limitation in bandwidth. They take advantage of the spectral potential of millimeter-waves bands. Due to their flexibility, RoF links may be designed for a transparent transport of analog or digital signals. Several applications, based on point to point or point to multi points links, are here reviewed. Trends and prospects for these networks are also explored.

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A simple and handy technique to produce optical fiber components such as Bragg gratings has been used. A C02 laser beam, focused on a single mode fiber, can change its optical properties locally, allowing therefore the creation of a Bragg grating inside the fiber it-self. In the present study, we investigate the effect of this laser beam on the fiber and show how optical fiber components can be produced. When exposing a single-mode optical fiber to a high-power C02 laser beam a small device is developed inside this fiber. Inside this micro-structure, the optical power is exchanged between the core and the cladding modes. This device may exhibit either a very selective rejection behavior similar to Bragg grating or an oscillating behavior like tapered fiber. The coupled mode theory combined with a mathematical algorithm can be used to study the propagation of the modes involved in the fiber.