Development of real-time measurement system using electro-optic-modulation frequency comb
| Project/Area Number |
19H02156
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Review Section |
Basic Section 21030:Measurement engineering-related
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| Research Institution | Tokyo Denki University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
石澤 淳 日本電信電話株式会社NTT物性科学基礎研究所, フロンティア機能物性研究部, 主任研究員 (30393797)
日達 研一 日本電信電話株式会社NTT物性科学基礎研究所, 量子光物性研究部, 主任研究員 (60564276)
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| Project Period (FY) |
2019-04-01 – 2022-03-31
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| Project Status |
Completed (Fiscal Year 2021)
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| Budget Amount *help |
¥17,940,000 (Direct Cost: ¥13,800,000、Indirect Cost: ¥4,140,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2020: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2019: ¥13,130,000 (Direct Cost: ¥10,100,000、Indirect Cost: ¥3,030,000)
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| Keywords | デュアルコム分光 / リアルタイム計測 / 光周波コム / 電気光学変調光周波数コム / 光周波数コム |
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| Outline of Research at the Start |
現在広く普及しているフーリエ変換赤外分光光度計に替わる、レーザーの専門家でなくても手軽に扱え、ロバストでフィールド環境でも利用可能な、１台のフリーランニング連続発振半導体レーザーと多段の電気光学変調器を用いた電子機器と光ファイバー結合ベースの新たなリアルタイム計測装置の研究開発を行い、その広帯域高分解能高速リアルタイム計測性能を活かした、環境ガスリモートセンシング、燃焼過程モニタリング、生体反応計測、長距離超精密距離計測への普及を図る。
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| Outline of Final Research Achievements |
We have developed a new dual-comb real-time measurement system that can be easily handled by non-laser experts. They are based on optical fiber coupling with a single free-running continuous-wave semiconductor laser and a multi-stage electro-optic modulator, which is robust and can be used in field environment. Combined with a high-precision wavelength meter, variable wavelength laser, and Herriott cell, dual-com spectroscopy measurement over a wide wavelength range of 1510 to 1585 nm is possible. Standard sample acetylene gas absorption line was measured in 9.3 ms measurement time with an absolute accuracy of 350 MHz. We also succeeded in improving the measurement sensitivity of ammonia gas spectrum, which is a biomarker for kidney disease, from 300 ppm to 10 ppm.
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| Academic Significance and Societal Importance of the Research Achievements |
レーザーの専門家でなくても手軽に扱え、ロバストでフィールド環境でも利用可能な、本デュアルコムリアルタイム計測装置の開発により、現在広く普及しているフーリエ変換赤外分光光度計では実現困難な広帯域高精度高速リアルタイム計測が可能となり、その性能を活かした、環境ガスリモートセンシング、燃焼過程モニタリング、生体反応計測、バイオマーカー計測による疾病診断、長距離超精密距離計測分野へ利用の道が拓けた。
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Report
(4 results)
Research Products
(24 results)
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[Presentation] Dependence of supercontinuum light on incident laser polarization and dispersion-controlled SiN waveguides2021
Author(s)
Koki Yoshida, Atsushi Ishizawa, Rai Kou, Xuejun Xu, Tai Tsuchizawa, Takuma Aihara, Yugo Kikkawa, Tadashi Nishikawa, Kenichi Hitachi, Guangwei Cong, Noritsugu Yamamoto, Koji Yamada, Katsuya Oguri
Organizer
International Symposium on Novel materials and quantum Technologies
Related Report
Int'l Joint Research
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[Presentation] Simple method of carrier-envelope-offset locking with f-3f self-referencing solely by a dispersion-controlled silicon-nitride waveguide2021
Author(s)
Atsushi Ishizawa, Kota Kawashima, Rai Kou, Xuejun Xu, Tai Tsuchizawa, Takuma Aihara, Koki Yoshida, Tadashi Nishikawa, Kenichi Hitachi, Guangwei Cong, Noritsugu Yamamoto, Koji Yamada, and Katsuya Oguri
Organizer
2021 Conference on Lasers and Electro-Optics Europe
Related Report
Int'l Joint Research
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