Q-switched fiber laser based on carbon nano wall saturable absorber

Soichiro Omi, Norihito Kawaguchi, Yuji Oki

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

6 Citations (Scopus)


We report a saturated absorption characteristic of carbon nanowall and Q-switched laser operation using carbon nanowall saturable absorber. Carbon nanowall is vertically aligned nanographite sheets on Si substrate synthesized by plasma-enhanced chemical vapor deposition method. A polyimide thin film, with incorporated carbon nanowall, coated by spin-coating method, is used as saturable absorber. Linear absorption spectrum of carbon nano-walls was observed without absorption peak wavelength range from 1000 to 2000nm. Modulation depth of carbon nanowall saturable absorber was measured with wavelength of about 1560nm. Q-switch laser operation with carbon nanowall saturable absorber and erbium doped optical fiber was demonstrated.

Original languageEnglish
Title of host publicationUltrafast Phenomena and Nanophotonics XIX
EditorsMarkus Betz, Kong-Thon Tsen, Abdulhakem Y. Elezzabi
ISBN (Electronic)9781628414516
Publication statusPublished - 2015
EventUltrafast Phenomena and Nanophotonics XIX - San Francisco, United States
Duration: Feb 8 2015Feb 11 2015

Publication series

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


OtherUltrafast Phenomena and Nanophotonics XIX
Country/TerritoryUnited States
CitySan Francisco

All Science Journal Classification (ASJC) codes

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


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