Broadband mid-IR fiber optics for heterodyne spectroscopy in solar system exploration missions

Hiromu Nakagawa, Satoki Tsukada, Yasumasa Kasaba, Yasuhiro Hirahara, Yuji Matsuura, Takashi Katagiri, Isao Murata, Atsushi Yamazaki

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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.

Original languageEnglish
Title of host publicationAdvances in Optical and Mechanical Technologies for Telescopes and Instrumentation IV
EditorsRamon Navarro, Roland Geyl
PublisherSPIE
ISBN (Electronic)9781510636897
DOIs
Publication statusPublished - 2020
EventAdvances in Optical and Mechanical Technologies for Telescopes and Instrumentation IV 2020 - Virtual, Online, United States
Duration: 2020 Dec 142020 Dec 22

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume11451
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceAdvances in Optical and Mechanical Technologies for Telescopes and Instrumentation IV 2020
CountryUnited States
CityVirtual, Online
Period20/12/1420/12/22

Keywords

  • Infrared fiber
  • heterodyne
  • high spectral resolution
  • planetary atmosphere
  • solar system exploration

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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