Novel mid-infrared light sources and their applications to medical and industrial sensings

2017 Fiscal Year Final Research Report

• Project/Area Number: 15H04012
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Measurement engineering
• Research Institution: The University of Tokyo
• Principal Investigator: YAMASHITA SHINJI 東京大学, 先端科学技術研究センター, 教授 (40239968)
• Co-Investigator(Kenkyū-buntansha): セット ジ・イヨン 東京大学, 先端科学技術研究センター, 准教授 (20530827)
• Co-Investigator(Renkei-kenkyūsha): HOTATE Kazuo 東京大学, 大学院工学系研究科, 教授 (60126159) ; KAKIGI Akinobu 東京大学, 医学部附属病院, 講師 (60243820)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 光ファイバレーザ / モード同期 / 中赤外 / カーボンナノチューブ / グラフェン

Outline of Final Research Achievements

The principal investigator has proposed and been working on highly functional mode-locked fiber lasers, such as short-pulse fiber lasers using carbon nanotube (CNT) or graphene, and dispersion-tuned wavelength swept lasers. This study aims at the new developments of these highly functional mode-locked fiber lasers towards mid-infrared (MIR) wavelength regions, and new applications to medical and industrial sensings, such as spectroscopy, optical coherence tomography (OCT), and Lidar. We have succeeded in generating MIR short pulse and broadband SC comb, and applied it to the spectroscopy. We also proposed novel mode locking method. We applied the dispersion-tuned lasers to spectroscopy and OCT, and also showed the performance improvement of OCT and Lidar with the aid of digital signal processing.

Free Research Field

光エレクトロニクス