| Presentation | 1998/1/22 Propagating beam analysis based on an improved multistep method using an adaptive grid Junji YAMAUCHI, Kenji MATSUBARA, Jun SHIBAYAMA, Minoru SEKIGUCHI, Hisamatsu NAKANO, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | An improved finite-difference beam propagation method for a nonuniform grid is formulated. The lowest order eigenmode of a graded-index waveguide is analyzed using the imaginary-distance procedure. The accuracies of the effective-index error and the numerically determined field are evaluated. It is found that the present scheme offers reduction in computational time, while maintaining higher accuracy than the conventional Crank-Nicholson scheme. The present scheme is applied to the multistep method for wide-angle beam propagation, with an adaptive grid being introduced. The propagation of TE_o mode in a tilted graded-index waveguide is analyzed to assess the numerical accuracy. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | nonuniform grid / finite-difference beam propagation method / multistep method / adaptive grid |
| Paper # | LQE97-129 |
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| Conference Information | |
| Committee | LQE |
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| Conference Date | 1998/1/22(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Vice Chair | |
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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) | Propagating beam analysis based on an improved multistep method using an adaptive grid |
| Sub Title (in English) | |
| Keyword(1) | nonuniform grid |
| Keyword(2) | finite-difference beam propagation method |
| Keyword(3) | multistep method |
| Keyword(4) | adaptive grid |
| 1st Author's Name | Junji YAMAUCHI |
| 1st Author's Affiliation | College of Engineering, Hosei University() |
| 2nd Author's Name | Kenji MATSUBARA |
| 2nd Author's Affiliation | College of Engineering, Hosei University |
| 3rd Author's Name | Jun SHIBAYAMA |
| 3rd Author's Affiliation | Furukawa Electric Co. Ltd. |
| 4th Author's Name | Minoru SEKIGUCHI |
| 4th Author's Affiliation | Hitachi Ltd. |
| 5th Author's Name | Hisamatsu NAKANO |
| 5th Author's Affiliation | College of Engineering, Hosei University |
| Date | 1998/1/22 |
| Paper # | LQE97-129 |
| Volume (vol) | vol.97 |
| Number (no) | 497 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |