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FREE-SPACE OPTICS [1 record]
Record 1 - internal organization data 2009-08-28
Record 1, English
Record 1, Subject field(s)
- Optical Telecommunications
Record 1, Main entry term, English
- free-space optics
1, record 1, English, free%2Dspace%20optics
correct
Record 1, Abbreviations, English
- FSO 1, record 1, English, FSO
correct
Record 1, Synonyms, English
- free space optics 2, record 1, English, free%20space%20optics
correct
- FSO 3, record 1, English, FSO
correct
- FSO 3, record 1, English, FSO
- free-space photonics 4, record 1, English, free%2Dspace%20photonics
correct
- FSP 5, record 1, English, FSP
correct
- FSP 5, record 1, English, FSP
- optical wireless 6, record 1, English, optical%20wireless
correct
- wireless optics 1, record 1, English, wireless%20optics
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
A technology that uses light propagating in free space to transmit data between two points. 7, record 1, English, - free%2Dspace%20optics
Record number: 1, Textual support number: 1 CONT
Free-Space Optics (also known as FSO, Wireless Optics or Optical Wireless) is an optical data, voice and video transmission system. Like fiber optic cable, wireless optics communication systems use laser light to transmit a digital signal between two transceivers. However, unlike fiber, the laser like is transtmited through the air (free-space) instead of through a glass strand. In order for the digital signal to be transmitted and received, there must be clear line of site between each wireless optics unit. In other words, there should be no obstructions such as trees or buildings between the transceiver units. 1, record 1, English, - free%2Dspace%20optics
Record number: 1, Textual support number: 2 CONT
The technology is useful where the physical connection of the transmit and receive locations is difficult, for example in cities where the laying of fibre optic cables is expensive. Free Space Optics is also used to communicate between space-craft, since outside of the atmosphere there is little to distort the signal. The optical links usually use infrared laser light, although low-data-rate communication over short distances is possible using LEDs [Light Emitting Diode]. IrDA [Infrared Data Association] is a very simple form of free-space optical communications. Distances up to the order of 10 km are possible, but the distance and data rate of connection is highly dependent on atmospheric conditions. 7, record 1, English, - free%2Dspace%20optics
Record number: 1, Textual support number: 1 OBS
In Information Technology and Communications, IrDA refers to Infrared Data Association, a standard for communication between devices (such as computers, PDAs and mobile phones) over short distances using infrared signals. 8, record 1, English, - free%2Dspace%20optics
Record 1, Key term(s)
- free space photonics
Record 1, French
Record 1, Domaine(s)
- Télécommunications optiques
Record 1, Main entry term, French
- optique sans fil
1, record 1, French, optique%20sans%20fil
correct, feminine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
L'optique sans fil et la radio sont deux technologies foncièrement différentes qui ont longtemps été considérées comme concurrentes. [...] Avec l'optique sans fil, on obtient de très hauts débits garantis jusqu'à 10 Gb [gigabits] se propageant sur de courtes ou de moyennes distances (entre 100 m et 2 km), en «full duplex». 1, record 1, French, - optique%20sans%20fil
Record 1, Spanish
Record 1, Textual support, Spanish
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