| Presentation | 2007-05-24 Optical Transmission using Free Space Optics Systems through Windowpanes Takeshi TSUJIMURA, Koichi Yoshida, Kazuyuki Shiraki, Izumi Sankawa, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We have studied a WDM (Wavelength Division Multiplexing) Free Space Optics system using 1310/1550 nm wavelength to realize a hybrid optical-fiber/ FSO (Free Space Optics) networks. One of its applications is wireless transmission through windowpanes for a subscriber's drop to construct a seamless FTTH (Fiber To The Home) network. Only a pair of collimator lenses is installed at the borders of the optical fiber part and the optical wireless part for the bilateral communication system after adjusting the optical axes of the collimators. The proposed system does not require power supply because no electric devices are equipped including laser diodes and photodiodes. We have prepared a Free Space Optics system and inserted it between two optical connectors of single-mode optical fibers. A collimator lens is attached to each optical connector, and faces to the opposite lens each other. We have constructed a prototype of the automatic collimator adjuster, and conducted some experiments to evaluate the transmission properties such as the transmission loss and the reflection loss. We newly designed collimators to improve the transmission properties, and carried out fundamental experiments to confirm the effectiveness of the proposed system. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | free space optics (FSO) / optical fiber / collimator / optical axis alignment |
| Paper # | OFT2007-5 |
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| Conference Information | |
| Committee | OFT |
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| Conference Date | 2007/5/17(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 Fiber Technology (OFT) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Optical Transmission using Free Space Optics Systems through Windowpanes |
| Sub Title (in English) | |
| Keyword(1) | free space optics (FSO) |
| Keyword(2) | optical fiber |
| Keyword(3) | collimator |
| Keyword(4) | optical axis alignment |
| 1st Author's Name | Takeshi TSUJIMURA |
| 1st Author's Affiliation | NTT Access Network Service Systems Laboratories() |
| 2nd Author's Name | Koichi Yoshida |
| 2nd Author's Affiliation | NTT Access Network Service Systems Laboratories |
| 3rd Author's Name | Kazuyuki Shiraki |
| 3rd Author's Affiliation | NTT Access Network Service Systems Laboratories |
| 4th Author's Name | Izumi Sankawa |
| 4th Author's Affiliation | NTT Electronics Corporation |
| Date | 2007-05-24 |
| Paper # | OFT2007-5 |
| Volume (vol) | vol.107 |
| Number (no) | 52 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |