How does free space optical communication work?

Free Space Optics (FSO) transmits invisible, eye-safe light beams from one “telescope” to another using low power infrared lasers in the terahertz spectrum. The beams of light in Free Space Optics (FSO) systems are transmitted by laser light focused on highly sensitive photon detector receivers.

How does project taara work?

Taara’s WOC links work by seeking each other out and linking their beams of light together to create a high-speed internet connection. It’s not ideal for use in foggy locations, but Project Taara has developed network planning tools that can estimate WOC availability based on various factors like weather.

What is free space in electronic communication?

“Free space” means air, outer space, vacuum, or something similar. This contrasts with using solids such as optical fiber cable. The technology is useful where the physical connections are impractical due to high costs or other considerations.

What is Google project taara?

Google says it has used the Free Space Optical Communications (FSOC) links developed for Project Loon to beam hundreds of terabytes of data nearly five kilometers, no wires necessary. Now under the purview of the company’s X labs, the little-known Project Taara is already enhancing connectivity in Kenya and India.

What are the advantages of free space optical communication?

FSO lasercom offers substantial advantages over conventional radio frequency (RF) wireless communications technology such as much higher bandwidth (data rates), low probability of intercept for higher security, low power requirements, and much smaller packaging to make them portable.

What are the disadvantages of FSO?

Drawbacks or disadvantages of FSO ➨Power consumption is higher. ➨It is easy to intercept due to its propagation medium and hence it is less secure than OFC. ➨The FSO transmitted signal gets blocked due to trees, animals, buildings and other atmospheric conditions. Birds and scintillation cause beam interruptions.

What is meant by free space optics?

Free-space optics (FSO), also called free-space photonics (FSP), refers to the transmission of modulated visible or infrared ( IR ) beams through the atmosphere to obtain Broadband communications. As long as there is a clear line of sight between the source and the destination, communication is theoretically possible.

Is Lifi free space optical communication?

Free-space optical (FSO) communication using Light Fidelity (Li-Fi) is a booming field with several advantages over optical fiber communication such as low cost, lower losses, lower complexity, and higher data rate.

What are pros and cons of free space communication vis à vis optical Fibre communication?

Pro and Cons.

• Excellent bandwidth to cost ratio – FSO links are a very cost effective way to provide high bandwidth links over short distances.
• License free operation – many radio links require licenses.
• High Bandwidth.
• Low error rates.
• Full Duplex communications.
• Are not effected by interference.
• Inherently secure.

What is the bandwidth of free space?

Free Space Optics (FSO) is a technology that uses laser beams via a line of sight optical bandwidth connection to transfer data, video or voice communications across areas ranging typically from 100m to a few kilometres at throughput bandwidths up to 1.5Gbps at frequencies above 300GHz of wavelengths, typically, 785 to …

Why free space is used in optical communication?

What is FSO channel?

Free Space Optical communication (FSO) is a wireless communication technology which uses light to transmit the data in free space. FSO has advantages like unlicensed spectrum and higher bandwidth. In this paper FSO system merits and demerits, challenges in FSO, and various channel models are discussed.

What is FSO (Free space optical communication)?

Free space optical (FSO) communication is the wireless transmission of data via a modulated optical beam directed through free space, without fiber optics or other optical systems guiding the light. The fundamental idea goes back to ancient times, as light (or smoke) signals were used to transmit information.

What is free space optics?

(Size 10 & Normal)Free Space Optics (FSO) is a wireless Line Of Sight (LOS) communication technology that uses light for the transmission of information through air or vacuum. In FSO, data is transmitted by propagation of light in free space allowing fiber optical connectivity.

What are the different types of free space optical communication?

Usage and technologies. Free-space point-to-point optical links can be implemented using infrared laser light, although low-data-rate communication over short distances is possible using LEDs. Infrared Data Association (IrDA) technology is a very simple form of free-space optical communications.

What is an optical communication channel?

The channel can be atmosphere, space, or vacuum, whose characteristics determine the transmission and reception of optical signals for designing reliable and efficient communication systems. Using FSO technology data is transmitted by propagation of light through atmospheric or space communication channels, allowing optical connectivity.