A SYSTEM FOR FREE SPACE LASER COMMUNICATION
The invention relates to the communication systems. A system of free space laser communication based on Bessel-type beams with long quasi-non-diffraction propagation distance consisting of an optically connected transmitting module comprising a laser source and a receiving module, where the optical...
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Format | Patent |
Language | English French |
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04.02.2021
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Abstract | The invention relates to the communication systems. A system of free space laser communication based on Bessel-type beams with long quasi-non-diffraction propagation distance consisting of an optically connected transmitting module comprising a laser source and a receiving module, where the optical unit for generating a Bessel-like beam comprising a tandem of two axicons movable relative to each other along the axis is disposed behind the transmitting module laser source, and may include as follows making the second axicon from more optically dense material compared to the first axicon, while the immersion refractive index for the first axicon is higher than the immersion refractive index for the second axicon, and submerging two axicons into immersion liquids with different temperatures, while the immersion temperature of the first axicon is lower than the immersion temperature of the second axicon, in order to increase the stability of laser communication in a turbulent atmosphere.
L'invention s'applique au domaine des systèmes de communication. Un système de communication laser à espace libre basé sur des faisceaux de type Bessel avec une longue distance de propagation de quasi-non-diffraction est constitué d'un module de transmission optiquement connecté comprenant une source laser et un module de réception, l'unité optique pour générer un faisceau de type Bessel comprenant un tandem de deux axicons mobiles l'un par rapport à l'autre le long de l'axe est disposée derrière la source laser de module de transmission, et peut comprendre comme suit la fabrication du second axicon à partir d'un matériau plus dense optiquement par rapport au premier axicon, tandis que l'indice de réfraction d'immersion pour le premier axicon est supérieur à l'indice de réfraction d'immersion pour le second axicon, et à l'immersion de deux axicons dans des liquides d'immersion à des températures différentes, tandis que la température d'immersion du premier axicon est inférieure à la température d'immersion du second axicon, afin d'augmenter la stabilité de la communication laser dans une atmosphère turbulente. |
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AbstractList | The invention relates to the communication systems. A system of free space laser communication based on Bessel-type beams with long quasi-non-diffraction propagation distance consisting of an optically connected transmitting module comprising a laser source and a receiving module, where the optical unit for generating a Bessel-like beam comprising a tandem of two axicons movable relative to each other along the axis is disposed behind the transmitting module laser source, and may include as follows making the second axicon from more optically dense material compared to the first axicon, while the immersion refractive index for the first axicon is higher than the immersion refractive index for the second axicon, and submerging two axicons into immersion liquids with different temperatures, while the immersion temperature of the first axicon is lower than the immersion temperature of the second axicon, in order to increase the stability of laser communication in a turbulent atmosphere.
L'invention s'applique au domaine des systèmes de communication. Un système de communication laser à espace libre basé sur des faisceaux de type Bessel avec une longue distance de propagation de quasi-non-diffraction est constitué d'un module de transmission optiquement connecté comprenant une source laser et un module de réception, l'unité optique pour générer un faisceau de type Bessel comprenant un tandem de deux axicons mobiles l'un par rapport à l'autre le long de l'axe est disposée derrière la source laser de module de transmission, et peut comprendre comme suit la fabrication du second axicon à partir d'un matériau plus dense optiquement par rapport au premier axicon, tandis que l'indice de réfraction d'immersion pour le premier axicon est supérieur à l'indice de réfraction d'immersion pour le second axicon, et à l'immersion de deux axicons dans des liquides d'immersion à des températures différentes, tandis que la température d'immersion du premier axicon est inférieure à la température d'immersion du second axicon, afin d'augmenter la stabilité de la communication laser dans une atmosphère turbulente. |
Author | JINLIANG, Sha DELE, Shi BELYI, Vladimir KUN, Cheng ROPOAT, Petr KAZAK, Nikolai GUANGLEI, Song HILO, Nikolai HONGYAN, Xu XIN, Li ZHICHAO, Qu PETROV, Petr |
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RelatedCompanies | SHANGDONG INSTITUTE OF SPACE ELECTRONIC TECHNOLOGY (SISET) STATE SCIENTIFIC INSTITUTION B.I. STEPANOV INSTITUTE OF PHYSICS OF THE NATIONAL ACADEMY OF SCIENCES OF THE REPUBLIC OF BELARUS |
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Title | A SYSTEM FOR FREE SPACE LASER COMMUNICATION |
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