High-speed broadband CARS dual-comb spectroscopy using a sub-THz short optical pulse train

2016 Fiscal Year Final Research Report

• Project/Area Number: 26286067
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Optical engineering, Photon science
• Research Institution: NTT Basic Research Laboratories
• Principal Investigator: ISHIZAWA ATSUSHI 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 (30393797)
• Co-Investigator(Kenkyū-buntansha): 小栗 克弥 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 (10374068) ; 西川 正 東京電機大学, 工学部, 教授 (20374069) ; 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, 研究主任 (60564276) ; 増子 拓紀 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 (60649664)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 光周波数コム / デュアルコム分光 / 電気光学変調器 / 高繰返し / 広モード間隔

Outline of Final Research Achievements

Short optical pulse generation technique at high repetition rate from a CW LD based on electro-optic modulators has been developed. With a single-mode fiber for pulse compression, we could achieve the generation of 230-fs short optical pulses at 25 GHz.we demonstrated that an ultralow-phase-noise millimeter-wave and microwave generation by using our developed optical source. In addition, we could also achieve broadband dual-comb spectroscopy for H13C14N gas and liquid samples.

Free Research Field

レーザー工学