TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 CONT

The laser light is split into two beams, one going clockwise and one going counter-clockwise. After traveling through the fiber optic loops, the laser beams are recombined at the detector.  3, record 1, English, - fibre%20optic%20loop

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 CONT

Si l'on place une boucle de fibre optique autour [du] fil, l'effet Faraday causé par le champ magnétique conduit à une différence de propagation pour des ondes lumineuses se propageant dans la fibre dans des sens opposés.  2, record 1, French, - boucle%20de%20fibre%20optique

Record 1,  Textual support,  Spanish

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 CONT

SAGEM is a world leader of inertial technology. Its expertise in gyroscopes ranges from controlled rate to floating, tuned-rotor, electrostatically suspended, ring laser, fiber optic and vibrating beam types. Accelerometer technologies include pendulum, vibrating beam and silicon. In-house expertise also includes GPS, GLONASS and terrain referenced navigation. Advanced digital Kalman filtering techniques are used to perform tightly integrated hybrid INS/GPS/GLONASS navigation. As a result of this global and sustained effort, SAGEM offers a range of pure inertial or hybrid navigation systems for submarines and surface ships, land vehicles, aircraft, helicopters and space vehicles.  1, record 2, English, - inertial%20technology

Record 2,  Textual support,  French

Record number: 2, Textual support number: 1 CONT

SAGEM est un leader mondial de la technologie inertielle. Ses compétences en matière de gyroscopie recouvrent toute la gamme des : gyromètres; gyroscopes flottants; gyroscopes accordés; gyroscopes à suspension électrostatique (GSE); gyroscopes laser, à fibres optiques, ou gyroscopes vibrants. Les technologies d'accéléromètres comprennent notamment les types pendulaires, à poutre vibrante et au silicium. Les compétences maîtrisées par SAGEM recouvrent aussi le domaine de la radiolocalisation par satellite GPS, GLONASS et du recalage par corrélation d'altitude. Cet effort global se traduit aujourd'hui par une gamme complète de systèmes inertiels et hybrides pour sous-marins et bâtiments de surface, véhicules terrestres, avions, hélicoptères et véhicules spatiaux.  2, record 2, French, - technologie%20inertielle

Record 2,  Textual support,  Spanish

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 DEF

A technology that uses light propagating in free space to transmit data between two points.  7, record 3, English, - free%2Dspace%20optics

Record number: 3, 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 3, English, - free%2Dspace%20optics

Record number: 3, 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 3, English, - free%2Dspace%20optics

Record number: 3, 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 3, English, - free%2Dspace%20optics

Record 3,  Textual support,  French

Record number: 3, 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 3, French, - optique%20sans%20fil

Record 3,  Textual support,  Spanish

Record 4,  Textual support,  English

Record number: 4, Textual support number: 1 DEF

A device used for [superimposing] information on a light beam, or a device which electrically changes the properties of a material through which light is being transmitted.  2, record 4, English, - optical%20modulator

Record number: 4, Textual support number: 1 CONT

Electro-optic systems consist of a Mach-Zehnder optical modulator, laser light source, photo-detector, and attached antenna element. The laser light source and photodetector are connected to the optical modulator via fiber optic cables. The modulator is an interferometric system in which the optical power output varies with the voltage supplied from the antenna element.  3, record 4, English, - optical%20modulator

Record 4,  Textual support,  French

Record number: 4, Textual support number: 1 DEF

Dispositif utilisé pour superposer de l'information sur un faisceau lumineux, ou dispositif qui fait varier électriquement les propriétés du matériel à travers lequel la lumière est transmise.  1, record 4, French, - modulateur%20optique

Record 4,  Textual support,  Spanish

Record 5,  Textual support,  English

Record number: 5, Textual support number: 1 CONT

Resonant Fiber-Optic Gyros. Evolved as a solid state derivative of the passive ring gyro, which makes use of a laser source external to the ring cavity. A passive resonant cavity is formed from a multi-turn closed loop of optical fiber.  1, record 5, English, - passive%20resonant%20cavity

Record 5,  Textual support,  French

Record number: 5, Textual support number: 1 CONT

[...] signalons l'entrée en service en 1994, sur avion de transport civil, du gyromètre à fibre optique [...] Son principe de fonctionnement est voisin du gyrolaser à cavité. [...] Ce gyromètre sans gaz, ni plasma, ni pièce mécanique mobile est particulièrement robuste. [...] Un autre type de gyromètre optique est à l'étude, dit à cavité résonnante passive et constitué d'un guide d'onde en forme d'anneau. Il est toujours basé sur le principe de deux faisceaux de lumière contra-rotatifs.  1, record 5, French, - cavit%C3%A9%20r%C3%A9sonnante%20passive

Record number: 5, Textual support number: 1 OBS

Résonant, variante résonnant.  3, record 5, French, - cavit%C3%A9%20r%C3%A9sonnante%20passive

Record 5,  Textual support,  Spanish

Record 6,  Textual support,  English

Record number: 6, Textual support number: 1 OBS

Resonant Fiber-Optic Gyros. Evolved as a solid state derivative of the passive ring gyro, which makes use of a laser source external to the ring cavity. A passive resonant cavity is formed from a multi-turn closed loop of optical fiber.  2, record 6, English, - passive%20resonant%20cavity%20optical%20gyro

Record 6,  Textual support,  French

Record number: 6, Textual support number: 1 CONT

[...] signalons l'entrée en service en 1994, sur avion de transport civil, du gyromètre à fibre optique [...] Son principe de fonctionnement est voisin du gyrolaser à cavité. [...] Ce gyromètre sans gaz, ni plasma, ni pièce mécanique mobile est particulièrement robuste. [...] Un autre type de gyromètre optique est à l'étude, dit à cavité résonnante passive et constitué d'un guide d'onde en forme d'anneau. Il est toujours basé sur le principe de deux faisceaux de lumière contra-rotatifs.  1, record 6, French, - gyrom%C3%A8tre%20optique%20%C3%A0%20cavit%C3%A9%20r%C3%A9sonnante%20passive

Record number: 6, Textual support number: 1 OBS

Résonant, variante résonnant.  3, record 6, French, - gyrom%C3%A8tre%20optique%20%C3%A0%20cavit%C3%A9%20r%C3%A9sonnante%20passive

Record 6,  Textual support,  Spanish

Record 7,  Textual support,  English

Record number: 7, Textual support number: 1 CONT

Both radio broadcasting and fiber optic systems require three essential elements : a transmitter, a transmission medium and a receiver. Instead of a radio wave transmitter and modulator to set the broadcast frequency and power the signal through the air, optical systems use modulators to establish an optical frequency, or channel, on a laser beam and feed it through a fiber. An optical frequency receiver then collects the messages, much in the manner of a radio set. And, just as tunable radio receivers let listeners select from among a number of stations, a tunable receiver for fiber optic communication is highly desirable.  2, record 7, English, - optical%20frequency

Record number: 7, Textual support number: 1 PHR

Quasi-optical frequency.  3, record 7, English, - optical%20frequency

Record 7,  Textual support,  French

Record number: 7, Textual support number: 1 CONT

Les études actuelles concernent la modélisation et la caractérisation de composants ou de fonctions optoélectroniques nouvelles pour les générations futures de systèmes optiques. Il s'agit notamment des systèmes de télécommunications à détection directe à grand produit débit x portée, des systèmes cohérents, tirant parti du gain en sensibilité de la détention homodyne ou hétérodyne, et des futurs réseaux monomodes à multiplexage en fréquence optique (réseaux «multicolores») exploitant également la sélectivité fréquentielle de ces techniques de détection, ou même encore des systèmes de télécommunications optiques spatiaux et des senseurs optiques.  2, record 7, French, - fr%C3%A9quence%20optique

Record number: 7, Textual support number: 1 PHR

Fréquence optique accordable.  3, record 7, French, - fr%C3%A9quence%20optique

Record 7,  Textual support,  Spanish