Free-space optical communication (FSO) is an optical communication technology that uses light propagating in free space to wirelessly transmit data for telecommunications or computer networking.
"Free space" means air, outer space, vacuum, or something similar. This contrasts with using solids such as optical fiber cable or an optical transmission line.
The technology is useful where the physical connections are impractical due to high costs or other considerations.
History
Optical communications, in various forms, have been used for thousands of years. The Ancient Greeks used a coded alphabetic system of signalling with torches developed by Cleoxenus, Democleitus and Polybius. In the modern era, semaphores and wireless solar telegraphs called heliographs were developed, using coded signals to communicate with their recipients.
Optical communication, also known as optical telecommunication, is communication at a distance using light to carry information. It can be performed visually or by using electronic devices. The earliest basic forms of optical communication date back several millennia, while the earliest electrical device created to do so was the photophone, invented in 1880.
An optical communication system uses a transmitter, which encodes a message into an optical signal, a channel, which carries the signal to its destination, and a receiver, which reproduces the message from the received optical signal. When electronic equipment is not employed the 'receiver' is a person visually observing and interpreting a signal, which may be either simple (such as the presence of a beacon fire) or complex (such as lights using color codes or flashed in a Morse code sequence).
Free-space optical communication has been deployed in space, while terrestrial forms are naturally limited by geography, weather and the availability of light. This article provides a basic introduction to different forms of optical communication.
Free-space optical communication (FSO) is an optical communication technology that uses light propagating in free space to wirelessly transmit data for telecommunications or computer networking. "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.
Atmospheric channels in FSO communication are modeled using: Gamma-gamma, Rayleigh, LogNormal, Rician, Nakagami-m and negative exponential distributions.
published: 14 Feb 2021
Free Space Optical Communications from QinetiQ
Find out more about Free Space Optical Communications here: https://www.qinetiq.com/en/what-we-do/cyber-and-digital-resilience/cyber-products/free-space-optical-communications
published: 19 Jul 2021
Fundamentals of Free-Space Optical Communication - Sam Dolinar
JPL's Sam Dolinar discusses the fundamentals of free-space optical communication (June 25, 2012).
published: 17 Feb 2017
Wifi Dabba laser link explainer video - Free Space Optics - 1 Gbps internet
In this video we explain you how Wifi Dabba's laser device works. The class 1 M laser device is now ready for the deployment.
published: 11 Mar 2021
Free Space Optical Communication
Download Presentation From : http://electrocircuit4u.blogspot.in/
Wireless optical Communication
published: 05 Jul 2015
Introduction to Free Space Optical Wireless Networking or FSO
Introduction to Free Space Optics technology from fSONA Optical Wireless (www.fSONA.com). Leveraging leading edge advancements in 1550nm optical transmission, the SONAbeam™ family of systems, based on free-space-optics (FSO), use a globally unlicensed, wireless technology to provide speeds up to 2.5 Gbps over distances up to 7km.
Free-space optical communication (FSO) is an optical communication technology that uses light propagating in free space to wirelessly transmit data for telecomm...
Free-space optical communication (FSO) is an optical communication technology that uses light propagating in free space to wirelessly transmit data for telecommunications or computer networking. "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.
Atmospheric channels in FSO communication are modeled using: Gamma-gamma, Rayleigh, LogNormal, Rician, Nakagami-m and negative exponential distributions.
Free-space optical communication (FSO) is an optical communication technology that uses light propagating in free space to wirelessly transmit data for telecommunications or computer networking. "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.
Atmospheric channels in FSO communication are modeled using: Gamma-gamma, Rayleigh, LogNormal, Rician, Nakagami-m and negative exponential distributions.
Find out more about Free Space Optical Communications here: https://www.qinetiq.com/en/what-we-do/cyber-and-digital-resilience/cyber-products/free-space-optical...
Find out more about Free Space Optical Communications here: https://www.qinetiq.com/en/what-we-do/cyber-and-digital-resilience/cyber-products/free-space-optical-communications
Find out more about Free Space Optical Communications here: https://www.qinetiq.com/en/what-we-do/cyber-and-digital-resilience/cyber-products/free-space-optical-communications
Introduction to Free Space Optics technology from fSONA Optical Wireless (www.fSONA.com). Leveraging leading edge advancements in 1550nm optical transmission, t...
Introduction to Free Space Optics technology from fSONA Optical Wireless (www.fSONA.com). Leveraging leading edge advancements in 1550nm optical transmission, the SONAbeam™ family of systems, based on free-space-optics (FSO), use a globally unlicensed, wireless technology to provide speeds up to 2.5 Gbps over distances up to 7km.
Introduction to Free Space Optics technology from fSONA Optical Wireless (www.fSONA.com). Leveraging leading edge advancements in 1550nm optical transmission, the SONAbeam™ family of systems, based on free-space-optics (FSO), use a globally unlicensed, wireless technology to provide speeds up to 2.5 Gbps over distances up to 7km.
Free-space optical communication (FSO) is an optical communication technology that uses light propagating in free space to wirelessly transmit data for telecommunications or computer networking. "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.
Atmospheric channels in FSO communication are modeled using: Gamma-gamma, Rayleigh, LogNormal, Rician, Nakagami-m and negative exponential distributions.
Find out more about Free Space Optical Communications here: https://www.qinetiq.com/en/what-we-do/cyber-and-digital-resilience/cyber-products/free-space-optical-communications
Introduction to Free Space Optics technology from fSONA Optical Wireless (www.fSONA.com). Leveraging leading edge advancements in 1550nm optical transmission, the SONAbeam™ family of systems, based on free-space-optics (FSO), use a globally unlicensed, wireless technology to provide speeds up to 2.5 Gbps over distances up to 7km.
Free-space optical communication (FSO) is an optical communication technology that uses light propagating in free space to wirelessly transmit data for telecommunications or computer networking.
"Free space" means air, outer space, vacuum, or something similar. This contrasts with using solids such as optical fiber cable or an optical transmission line.
The technology is useful where the physical connections are impractical due to high costs or other considerations.
History
Optical communications, in various forms, have been used for thousands of years. The Ancient Greeks used a coded alphabetic system of signalling with torches developed by Cleoxenus, Democleitus and Polybius. In the modern era, semaphores and wireless solar telegraphs called heliographs were developed, using coded signals to communicate with their recipients.
I wait around as the clock passes time, 'Cause the days can't come soon enough. Six long weeks, I can't take much more. If I close my eyes, I can't see you. (Chorus) Look around the room. Tell me what you see. If I'm not there with you Two more days and I'll be. Free. Another dream puts my thoughts to rest. I trust the days passing by. Two more days; i can't wait much more. All the days I've spent have gone by. Living away from home I feel out of place. Making the most of my time will give me my free space. Spending the time apart has made me sick and worn. Running around with you has made me feel so torn! (Chorus) Free The space behind my bed it hides, you see. Change the way the picture faces me. As I pack to leave this shack with gloom, I'll tell you one last time to dream and... (Chorus) And I'll be Ohhh and I'll be And I'll be