| Presentation | 2018-10-18 Characteristics of Spin Polarization Modulation in VCSELs for High-Speed Operation Nobuhide Yokota, Kunpei Nisaka, Kazuhiro Ikeda, Hiroshi Yasaka, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | High-speed vertical-cavity surface-emitting lasers (VCSELs) with low cost and low energy consumption are required to cope with a rapid growth of data communication traffics. In this study, we theoretically and experimentally investigate novel modulation characteristics of VCSELs under the spin polarization modulation of injected electrons. A spin-flip rate equation analysis reveals that an enhanced modulation bandwidth exceeding the relaxation oscillation frequency can be realized under the spin polarization modulation. This feature is experimentally verified under the optical modulation of the electron spin polarization in InAlGaAs VCSELs by observing a wide 3-dB bandwidth of 23 GHz which is much wider than the relaxation oscillation frequency. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | VCSEL / Electron spin / Birefringence / High-speed modulation |
| Paper # | OCS2018-36,OPE2018-72,LQE2018-61 |
| Date of Issue | 2018-10-11 (OCS, OPE, LQE) |
| Conference Information | |
| Committee | OPE / LQE / OCS |
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| Conference Date | 2018/10/18(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Kouki Sato(Furukawa Electric Industries) / Kiichi Hamamoto(Kyusyu Univ.) / Itsuro Morita(KDDI Research) |
| Vice Chair | Hiroshi Takahashi(Sophia Univ.) / Hiroshi Aruga(Mitsubishi Electric) |
| Secretary | Hiroshi Takahashi(Univ. of Tokyo) / Hiroshi Aruga(NICT) / (SEI) |
| Assistant | Yuya Shoji(Tokyo Inst. of Tech.) / Kazunori Seno(NTT) / Masaya Nagai(Osaka Univ.) |
| Paper Information | |
| Registration To | Technical Committee on OptoElectronics / Technical Committee on Lasers and Quantum Electronics / Technical Committee on Optical Communication Systems |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Characteristics of Spin Polarization Modulation in VCSELs for High-Speed Operation |
| Sub Title (in English) | |
| Keyword(1) | VCSEL |
| Keyword(2) | Electron spin |
| Keyword(3) | Birefringence |
| Keyword(4) | High-speed modulation |
| 1st Author's Name | Nobuhide Yokota |
| 1st Author's Affiliation | Tohoku University(Tohoku Univ.) |
| 2nd Author's Name | Kunpei Nisaka |
| 2nd Author's Affiliation | Tohoku University(Tohoku Univ.) |
| 3rd Author's Name | Kazuhiro Ikeda |
| 3rd Author's Affiliation | National Institute of Advanced Industrial Science and Technology(AIST) |
| 4th Author's Name | Hiroshi Yasaka |
| 4th Author's Affiliation | Tohoku University(Tohoku Univ.) |
| Date | 2018-10-18 |
| Paper # | OCS2018-36,OPE2018-72,LQE2018-61 |
| Volume (vol) | vol.118 |
| Number (no) | OCS-251,OPE-252,LQE-253 |
| Page | pp.pp.47-50(OCS), pp.47-50(OPE), pp.47-50(LQE), |
| #Pages | 4 |
| Date of Issue | 2018-10-11 (OCS, OPE, LQE) |