| Presentation | 2022-10-21 Fundamental Study of Vertical Diffraction Grating for Application to Active MMI Laser Keiichirou Kozu, Xiao He, Yudai kawano, Haisong Jiang, Kiichi Hamamoto, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Active MMI (multi-mode interferometer) lasers are capable of exhibiting photon-photon resonance and are being investigated as future ultrafast direct modulation lasers. In particular, if a plurality of resonance peaks can be expressed, it may be possible to achieve modulation characteristics up to a higher frequency range than before. However, in the active MMI lasers that have been studied so far, the oscillation wavelength control that determines the PPR peak position is not stable, and there is a problem in stabilizing it. In this study, we investigated adding a wavelength stabilization mechanism by introducing a vertical diffraction grating into a part of the waveguide structure of an active MMI laser. Considering the frequency response over 100 GHz, we investigated a structure in which the grating region length is about 100 ?m and the grating is provided on the side wall of the high mesa waveguide. As a result, it was found that a sharp reflection spectrum was obtained with an etching depth of 1.1 ?m or more, and the desired oscillation wavelength control was obtained. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Vertical grating / Active-MMI laser diode / Oscillation wavelength control |
| Paper # | OCS2022-37,OPE2022-83,LQE2022-46 |
| Date of Issue | 2022-10-13 (OCS, OPE, LQE) |
| Conference Information | |
| Committee | OPE / OCS / LQE |
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| Conference Date | 2022/10/20(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Toshikazu Hashimoto(NTT) / Takeshi Hoshida(Fujitsu) / Junichi Takahara(Osaka Univ.) |
| Vice Chair | Taro Arakawa(Yokohama National Univ.) / / Kosuke Nishimura(KDDI Research) |
| Secretary | Taro Arakawa(Kochi Univ. of Tech) / (Mitsubishi Electric) / Kosuke Nishimura(NTT) |
| Assistant | Yuhei Ishizaka(Kanto Gakuin Univ.) / Takeshi Umeki(NTT) / / Yoshiaki Nishijima(Yokohama National Univ.) / Nobuhiko Nishiyama(Tokyo Inst. of Tech.) |
| Paper Information | |
| Registration To | Technical Committee on OptoElectronics / Technical Committee on Optical Communication Systems / Technical Committee on Lasers and Quantum Electronics |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Fundamental Study of Vertical Diffraction Grating for Application to Active MMI Laser |
| Sub Title (in English) | |
| Keyword(1) | Vertical grating |
| Keyword(2) | Active-MMI laser diode |
| Keyword(3) | Oscillation wavelength control |
| 1st Author's Name | Keiichirou Kozu |
| 1st Author's Affiliation | Kyushu University(Kyushu Univ.) |
| 2nd Author's Name | Xiao He |
| 2nd Author's Affiliation | Kyushu University(Kyushu Univ.) |
| 3rd Author's Name | Yudai kawano |
| 3rd Author's Affiliation | Kyushu University(Kyushu Univ.) |
| 4th Author's Name | Haisong Jiang |
| 4th Author's Affiliation | Kyushu University(Kyushu Univ.) |
| 5th Author's Name | Kiichi Hamamoto |
| 5th Author's Affiliation | Kyushu University(Kyushu Univ.) |
| Date | 2022-10-21 |
| Paper # | OCS2022-37,OPE2022-83,LQE2022-46 |
| Volume (vol) | vol.122 |
| Number (no) | OCS-216,OPE-217,LQE-218 |
| Page | pp.pp.104-109(OCS), pp.104-109(OPE), pp.104-109(LQE), |
| #Pages | 6 |
| Date of Issue | 2022-10-13 (OCS, OPE, LQE) |