| Presentation | 2003/12/11 Wide-beam propagating fiber for inline optical devices Yukihisa TAMURA, Hidehiko YODA, Luis Romeu NUNES, Kazuyosi OHTA, Hideo KATO, Tomotake YOSHIDA, Kazuo SHIRAISHI, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We propose a new coupling scheme for embedding inline optical devices. The fundamental mode with large MFD is used to reduce diffraction in the fiber gap. By the use of GIF chips the MFD from a SMF is expanded up to 60μm, and collimated. The collimated beam can propagate long distance with the same MFD, giving this way flexibility in the formation of groove to insert optical devices. It was confirmed the propagation up to 50cm of a beam with constant MFD of 60μm. In this approach, 1dB loss was reached at 1.5mm gap. Furthermore, we propose a configuration employing a hemispherically-ended GIF. This configuration decreases the diffraction loss in the gap and expands the working distance. The hemispherically-ended GIF is theoretically discussed and experimentally confirmed. The minimum loss of 0.54dB was achieved at the fiber gap of 1.8mm. Fiber gap with values of such order allow the fabrication of large devices with very low insertion loss. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | optical fiber / GI Fiber-chip / fundamental mode / MFD / fiber collimator / hemispherically-ended fiber |
| Paper # | OPE2003-186,LQE2003-123 |
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| Conference Information | |
| Committee | LQE |
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| Conference Date | 2003/12/11(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Lasers and Quantum Electronics (LQE) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Wide-beam propagating fiber for inline optical devices |
| Sub Title (in English) | |
| Keyword(1) | optical fiber |
| Keyword(2) | GI Fiber-chip |
| Keyword(3) | fundamental mode |
| Keyword(4) | MFD |
| Keyword(5) | fiber collimator |
| Keyword(6) | hemispherically-ended fiber |
| 1st Author's Name | Yukihisa TAMURA |
| 1st Author's Affiliation | Graduate School of Engineering, Utsunomiya University() |
| 2nd Author's Name | Hidehiko YODA |
| 2nd Author's Affiliation | Graduate School of Engineering, Utsunomiya University |
| 3rd Author's Name | Luis Romeu NUNES |
| 3rd Author's Affiliation | Graduate School of Engineering, Utsunomiya University |
| 4th Author's Name | Kazuyosi OHTA |
| 4th Author's Affiliation | Moritex Corporation |
| 5th Author's Name | Hideo KATO |
| 5th Author's Affiliation | Moritex Corporation |
| 6th Author's Name | Tomotake YOSHIDA |
| 6th Author's Affiliation | Moritex Corporation |
| 7th Author's Name | Kazuo SHIRAISHI |
| 7th Author's Affiliation | Graduate School of Engineering, Utsunomiya University |
| Date | 2003/12/11 |
| Paper # | OPE2003-186,LQE2003-123 |
| Volume (vol) | vol.103 |
| Number (no) | 526 |
| Page | pp.pp.- |
| #Pages | 4 |
| Date of Issue | |