Free-Space Optics (FSO)
Free-Space Optics (FSO) is a line-of-sight technology that uses lasers to provide optical bandwidth connections. Capable of Giga Bits throughput for data, voice and video communications through the air, allowing optical connectivity without requiring fibre-optic cable or securing spectrum licenses. FSO requires light, which can be focused by using either light emitting diodes (LEDs) or lasers (light amplification by stimulated emission of radiation).

FSO technology is relatively simple. It's based on connectivity between FSO units, each consisting of an optical transceiver with a laser transmitter and a receiver to provide full duplex (bi-directional) capability. Each FSO unit uses a high-power optical source (i.e. laser), plus a lens that transmits light through the atmosphere to another lens receiving the information. The receiving lens connects to a high-sensitivity receiver via optical fiber. FSO technology requires no spectrum licensing. FSO is easily upgradeable, and its open interfaces support equipment from a variety of vendors, which helps service providers protect their investment in embedded telecommunications infrastructures.

While fibre-optic communication has gained acceptance in the telecommunications industry, FSO communication is still relatively new. FSO enables similar bandwidth transmission abilities as fibre optics, using similar optical transmitters and receivers and even enabling WDM Like-Technologies to operate through free space.

FSO Technology provides simple, low cost "last mile" access to corporate networks for a fraction of the cost of traditional fibre optic cable. The initial equipment investment can be recouped within the first year of deployment over similar bandwidth leased on a monthly basis from a traditional Telco Provider. Many ILEC's and CLEC's are turning to FSO technology to provision "last mile" bandwidth due to the low cost of implementation and maintenance.

FSO is an ideal technology for multi-site corporate campus solutions, either as fibre replacement, load sharing or backup and should compliment the product portfolio and provide a profitable, easy to sell, install and maintain solution.