| Presentation | 2019-08-23 Optical deflector parameter measurement method for high precision of optical deflection technology using wavelength swept light source and diffraction grating Masahiro Ueno, Yuichi Akage, Souichi Oka, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Swept Source type LiDAR, which has vibration resistance due to the lack of mechanical parts, has attracted attention for applications in environments with vibrations such as automobiles and construction sites. In the LiDAR, light beam is deflected by temporally changing the wavelength incident on the diffraction grating. Therefore, when the deflection unit is formed by the space optical system, it is important to accurately obtain the parameters of the light deflector, such as the incident angle of the light to the grating, the angle between the optical axis of the light deflector and the grating, in order to construct a highly accurate LiDAR. As a parameter acquisition method, we propose a method of fitting position data obtained by capturing deflected light by a photodetector to a grating formula. As a result of using the method, both the incident angle to the grating and the installation angle of the grating can be obtained with an accuracy of 0.1degree or less. In addition, it was confirmed that the accuracy of the deflection angle was an accuracy of 0.03degree or less. This is an error level of about 0.5mm at a distance of up to 1m. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | LiDAR / Swept Source / Diffraction Grating / Accuracy / Light Deflector / Incident Angle / Parameter |
| Paper # | R2019-32,EMD2019-30,CPM2019-31,OPE2019-59,LQE2019-37 |
| Date of Issue | 2019-08-15 (R, EMD, CPM, OPE, LQE) |
| Conference Information | |
| Committee | LQE / OPE / CPM / EMD / R |
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| Conference Date | 2019/8/22(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Hiroshi Aruga(Mitsubishi Electric) / Hiroshi Takahashi(Sophia Univ.) / Mayumi Takeyama(Kitami Inst. of Tech.) / Shinichi Wada(TMC System) / Akira Asato(Fujitsu) |
| Vice Chair | Hiroshi Yasaka(Tohoku Univ.) / Goji Nakagawa(Fujitsu Labs.) / Yuichi Nakamura(Toyohashi Univ. of Tech.) / Yoshiki Kayano(Univ. of Electro-Comm.) / Tadashi Dohi(Hiroshima Univ.) |
| Secretary | Hiroshi Yasaka(Furukawa Electric Industries) / Goji Nakagawa(Osaka Univ.) / Yuichi Nakamura(Tokyo Inst. of Tech.) / Yoshiki Kayano(NTT) / Tadashi Dohi(Hirosaki Univ.) |
| Assistant | Fumito Nakajima(NTT) / Kenta Miura(Gunma Univ.) / Yuki Wakayama(Hitachi) / Yasuo Kimura(Tokyo Univ. of Tech.) / Tomoaki Terasako(Ehime Univ.) / Fumihiko Hirose(Yamagata Univ.) / Yuichi Hayashi(ＮＡＩＳＴ) / Hiroyuki Okamura(Hiroshima Univ.) / Shinji Yokogawa(Univ. of Electro-Comm.) |
| Paper Information | |
| Registration To | Technical Committee on Lasers and Quantum Electronics / Technical Committee on OptoElectronics / Technical Committee on Component Parts and Materials / Technical Committee on Electromechanical Devices / Technical Committee on Reliability |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Optical deflector parameter measurement method for high precision of optical deflection technology using wavelength swept light source and diffraction grating |
| Sub Title (in English) | |
| Keyword(1) | LiDAR |
| Keyword(2) | Swept Source |
| Keyword(3) | Diffraction Grating |
| Keyword(4) | Accuracy |
| Keyword(5) | Light Deflector |
| Keyword(6) | Incident Angle |
| Keyword(7) | Parameter |
| 1st Author's Name | Masahiro Ueno |
| 1st Author's Affiliation | Nippon Telegraph and Telephone Corporation(NTT) |
| 2nd Author's Name | Yuichi Akage |
| 2nd Author's Affiliation | Nippon Telegraph and Telephone Corporation(NTT) |
| 3rd Author's Name | Souichi Oka |
| 3rd Author's Affiliation | Nippon Telegraph and Telephone Corporation(NTT) |
| Date | 2019-08-23 |
| Paper # | R2019-32,EMD2019-30,CPM2019-31,OPE2019-59,LQE2019-37 |
| Volume (vol) | vol.119 |
| Number (no) | R-169,EMD-170,CPM-171,OPE-172,LQE-173 |
| Page | pp.pp.61-66(R), pp.61-66(EMD), pp.61-66(CPM), pp.61-66(OPE), pp.61-66(LQE), |
| #Pages | 6 |
| Date of Issue | 2019-08-15 (R, EMD, CPM, OPE, LQE) |