| Presentation | 2007-11-01 1xN active MMI-LDs for energy space-transmission Kazunori Okamoto, Teppei Fukuda, Kiichi Hamamoto, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Here we report 1xN Active MMII (multi-mode-interferometer)-LDs (laser diodes) using phase-mach region for the first time. In general, passive multi-mode-interference splitter divides optical power into same N, however, each phase is not matched each other. For instance, when N=3, the phase of the outer waveguides is π/3rad while one of the center is Orad. This phase miss-match leads to extraordinary lasing or even non-lasing when regular 1xN MMI waveguide is designed as laser waveguide structure. To sidestep this issue, we newly propose to integrate phase-match region, which leads to normal lasing even for 1xN MMI waveguide structure without additional internal loss due to phase-match error. Implemented device performances showed the same slope efficiencies of 0.16W/A for regular single stripe laser, 1x2-MMI, and 1x3-MMI, therefore, we could successfully confirm that the first regular lasing of 1xN Active MMI-LDs for the first time. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | space energy transmission / high optical output / Area for phase control / 1xN Active MMI-LD |
| Paper # | OCS2007-56,OPE2007-111,LQE2007-97 |
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| Conference Information | |
| Committee | LQE |
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| Conference Date | 2007/10/25(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) | 1xN active MMI-LDs for energy space-transmission |
| Sub Title (in English) | |
| Keyword(1) | space energy transmission |
| Keyword(2) | high optical output |
| Keyword(3) | Area for phase control |
| Keyword(4) | 1xN Active MMI-LD |
| 1st Author's Name | Kazunori Okamoto |
| 1st Author's Affiliation | I-EggS (Interdisciplinary Graduate School of Engineering Sciences), Kyushu University() |
| 2nd Author's Name | Teppei Fukuda |
| 2nd Author's Affiliation | I-EggS (Interdisciplinary Graduate School of Engineering Sciences), Kyushu University |
| 3rd Author's Name | Kiichi Hamamoto |
| 3rd Author's Affiliation | I-EggS (Interdisciplinary Graduate School of Engineering Sciences), Kyushu University |
| Date | 2007-11-01 |
| Paper # | OCS2007-56,OPE2007-111,LQE2007-97 |
| Volume (vol) | vol.107 |
| Number (no) | 302 |
| Page | pp.pp.- |
| #Pages | 5 |
| Date of Issue | |