@inproceedings{4961337b95c843e5a20ad440b41bcb96,
title = "Broadband mid-IR fiber optics for heterodyne spectroscopy in solar system exploration missions",
abstract = "We demonstrate a new design hollow optical fiber suitable for use on IR heterodyne spectroscopy in mid-infrared wavelength region. The spectral feature of the laser emission line and the system noise temperature obtained by heterodyne detection with hollow optical fiber is confirmed by a laboratory measurement. The system noise temperature less than 3000 K obtained by the experimental setup with the CO2 laser-based heterodyne system led by a hollow optical fiber is only ∼100 % above the quantum limit. The hollow optical fiber allows heterodyne detection with a sufficient efficiency. This permits simplified fabrication, provides even more weight reduction. Further investigation is required for use of hollow optical fiber on the target source. ",
keywords = "Infrared fiber, heterodyne, high spectral resolution, planetary atmosphere, solar system exploration",
author = "Hiromu Nakagawa and Satoki Tsukada and Yasumasa Kasaba and Yasuhiro Hirahara and Yuji Matsuura and Takashi Katagiri and Isao Murata and Atsushi Yamazaki",
note = "Funding Information: This work was supported by Grant-in-Aid for Scientific Research (B) JP19H01950 from JSPS, and by the Payload Basic Development Program of Institute of Space and Astronautical Science (ISAS), Japan Aerospace and Exploration Agency (JAXA). Publisher Copyright: {\textcopyright} 2020 SPIE.; Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation IV 2020 ; Conference date: 14-12-2020 Through 22-12-2020",
year = "2020",
doi = "10.1117/12.2561939",
language = "English",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Ramon Navarro and Roland Geyl",
booktitle = "Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation IV",
}