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Proton radiation effects in quantum dot lasers |
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| Authors: | Shun-ichi Gonda Hiroyuki Tsutsumi Kyo Kume Mitsuru Ishida |
| Affiliation: | a Department of Space Communication Engineering, Fukui University of Technology, 3-6-1 Gakuen, Fukui 910-8505, Japan b The Wakasawan Energy Research Center, 64-52-1 Nagatani, Tsuruga, Fukui 914-0135, Japan c Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8505, Japan |
| Abstract: | Proton beams with energies of 10 and 200 MeV were irradiated onto InAs quantum dot lasers with a wavelength of 1.3 μm. The increase in threshold current by proton irradiation was small compared with those of the previously reported other quantum dot lasers with larger active region and 1.3-μm InGaAsP quantum well lasers. These results were discussed by taking account of non-ionizing energy loss and effective volume of active region. |
| Keywords: | 42.55.Px 61.80Jh 78.55.Cr 78.67.Hc |
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