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