| Presentation | 2002/10/2 Experimental evaluation of spot dancing of laser beam in atmospheric propagation using high-speed camera Moriya NAKAMURA, Makoto AKIBA, Toshiaki KURI, Naoki OHTANI, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In a free-space optical communication system, a laser beam propagating through the atmosphere experiences deformation of its wave-front, which is caused by atmospheric turbulence. As a result, spot-dancing is observed at the receiver side. We measured the frequency and two-dimensional (2D) distribution of the beam centroid variance which characteristics are needed to optimize design of tracking system. In this report, we propose a novel spot-dancing measurement method, in which two laser beams apart from each other are propagated and observed by high-speed cameras simultaneously. By calculating the difference between the two 2D coordinate data of the beam centroid variance, we obtained data without effects of building or transmitter vibration. Measurement results obtained by the proposed method are also reported. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Spot dancing / Atmospheric propagation / High-speed camera / Free-space optical communications |
| Paper # | OCS2002-70 |
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| Conference Information | |
| Committee | OCS |
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| Conference Date | 2002/10/2(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Optical Communication Systems (OCS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Experimental evaluation of spot dancing of laser beam in atmospheric propagation using high-speed camera |
| Sub Title (in English) | |
| Keyword(1) | Spot dancing |
| Keyword(2) | Atmospheric propagation |
| Keyword(3) | High-speed camera |
| Keyword(4) | Free-space optical communications |
| 1st Author's Name | Moriya NAKAMURA |
| 1st Author's Affiliation | Communications Research Laboratory() |
| 2nd Author's Name | Makoto AKIBA |
| 2nd Author's Affiliation | Communications Research Laboratory |
| 3rd Author's Name | Toshiaki KURI |
| 3rd Author's Affiliation | Communications Research Laboratory |
| 4th Author's Name | Naoki OHTANI |
| 4th Author's Affiliation | Communications Research Laboratory |
| Date | 2002/10/2 |
| Paper # | OCS2002-70 |
| Volume (vol) | vol.102 |
| Number (no) | 358 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |