| Presentation | 2000/5/15 Proposal of an optical detection using DFB laser with very small aperture D. Kawasaki, H. Awabayashi, M. Yamada, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | An optical detection system using DFB laser with very small aperture is theoretically proposed. The threshold gain level in DFB laser is sensitively varied with combined reflections by the facet and the grating as well as with the optical injection reflected at the surface of the optical disk. Variation of the threshold gain level is counted as the voltage change on electrodes of the laser. It is found that sensitivity of the optical detection with well-designed DFB laser becomes six times larger than that by conventional Fabry-Perot ones. Field distribution around the small aperture is analyzed taking into account both to evanescent and the radiation fields. Numerical data on the voltage variation are given as examples of the detection system. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | DFB laser / near field optics / very small aperture / optical pick up / optical head |
| Paper # | LQE2000-2 |
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| Conference Information | |
| Committee | LQE |
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| Conference Date | 2000/5/15(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
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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) | Proposal of an optical detection using DFB laser with very small aperture |
| Sub Title (in English) | |
| Keyword(1) | DFB laser |
| Keyword(2) | near field optics |
| Keyword(3) | very small aperture |
| Keyword(4) | optical pick up |
| Keyword(5) | optical head |
| 1st Author's Name | D. Kawasaki |
| 1st Author's Affiliation | Faculty of Engineering, Kanazawa University() |
| 2nd Author's Name | H. Awabayashi |
| 2nd Author's Affiliation | Faculty of Engineering, Kanazawa University |
| 3rd Author's Name | M. Yamada |
| 3rd Author's Affiliation | Faculty of Engineering, Kanazawa University |
| Date | 2000/5/15 |
| Paper # | LQE2000-2 |
| Volume (vol) | vol.100 |
| Number (no) | 73 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |