| Presentation | 1996/10/8 Ultra-Small Microdisk Injection Lasers T. Baba, M. Kihara, R. Watanabe, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Microdisk lasers are applicable to light sources in photonic integrated circuits owing to their compact size and localization of optical field. In this study, we fabricated this type of laser using 1.55μm GaInAsP/InP compressive-strained quantum-well wafer and obtained lasing operation in 3-μm-diameter devices. The minimum threshold current under pulsed condition was 0.9 mA. The diameter dependence of threshold current showed that the surface recombination at the disk active layer limited the threshold reduction. Resonant modes observed below threshold well coincided with theoretically predicted whispering gallery modes. The effective mode volume of the 3-μm-diameter device was estimated to be 0.8μm^3. This seems to be the smallest among those of ever reported various microcavity lasers. By reducing the mode volume to nearly 0.2μm^3 and suppressing the surface recombination, the condition that only one resonant mode exists in emission spectrum will be possible, which results in the threshold-less lasing operation. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | semiconductor laser / microdisk / GaInAsP/InP / strained QW / whispering gallery mode |
| Paper # | LQE96-79 |
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| Conference Information | |
| Committee | LQE |
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| Conference Date | 1996/10/8(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| 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) | Ultra-Small Microdisk Injection Lasers |
| Sub Title (in English) | |
| Keyword(1) | semiconductor laser |
| Keyword(2) | microdisk |
| Keyword(3) | GaInAsP/InP |
| Keyword(4) | strained QW |
| Keyword(5) | whispering gallery mode |
| 1st Author's Name | T. Baba |
| 1st Author's Affiliation | Yokohama National University Division of Electrical & Computer Engineering() |
| 2nd Author's Name | M. Kihara |
| 2nd Author's Affiliation | Yokohama National University Division of Electrical & Computer Engineering |
| 3rd Author's Name | R. Watanabe |
| 3rd Author's Affiliation | Yokohama National University Division of Electrical & Computer Engineering |
| Date | 1996/10/8 |
| Paper # | LQE96-79 |
| Volume (vol) | vol.96 |
| Number (no) | 290 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |