Optical Wireless Solutions Based on Free-Space Optics (FSO) Technology

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Now a day’s information wealth depends on the conduction of data, voice and multimedia in telecommunication networks. Despite new technologies that enable legacy copper telephone lines to carry information more efficiently, optical networks remain the most ideal medium for high-bandwidth communications for true connectivity.
There are two different types of optical communications: Fiber optics system through fiber optical cable and optical wireless though free space systems based on free-space optics (FSO) technology. For long-haul network deployments, nothing performs better than fiber. When coupled with new Dense Wavelength Division Multiplex (DWDM) technologies, fiber optics is capable of carrying information at 40Gbps. However, for making connections over relatively short distances in cities—the “last mile” between the fiber and the majority of end users—fiber and optical wireless solutions often rely on one another for success. The two technologies not only come from the same family tree, they are nearly identical twins.
The last two decades have seen huge investments in building a global fiber network core, leveraged with the promise of generating increased bandwidth access and services to meet growing needs. Meeting projected bandwidth needs, however, depends on customers having access to optical networks. This has yet to fully occur in the metropolitan areas, which remain a relatively untapped bandwidth access market where an estimated 7 percent to 10 percent of end-users are connected to fiber-optic networks.
Fiber optics continues to be deployed at a measured and sustained pace, but the cost to do so is often prohibitive, the process long, and the investment irreversible. Conversely, optical wireless solutions complement fiber optics in networks with considerably less expense, faster deployment, and flexible service rollouts, including same-day connectivity, due to their ease of installation and maintenance.

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