More than 100W, 18cm Yb-doped phosphate fiber amplifier

Leonid Kotov, Mehmetcan Akbulut, Arturo Chavez-Pirson, Jie Zong, N. Peyghambarian

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

4 Scopus citations


Phosphate glass is an attractive material for rare-earth-doped fiber manufacturing because high doping levels are possible without introducing negative effects such as up-conversion or increased non-radiative recombination. In this paper we present a novel PM heavily Yb-doped polarization maintaining large mode area phosphate fiber and a < 100 W power level amplifier based on this fiber. The fiber was fabricated by a rod-in-tube technique. An 18 cm long piece of the fiber was used to build a high-power all-fiber amplifier. 106 W of output power at 1030 nm was achieved with 55 % slope efficiency with respect to the launched pump power. To the best of our knowledge, this is the highest average power ever demonstrated for short phosphate fiber lasers.

Original languageEnglish (US)
Title of host publicationFiber Lasers XVI
Subtitle of host publicationTechnology and Systems
EditorsAdrian L. Carter, Liang Dong
ISBN (Electronic)9781510624368
StatePublished - 2019
EventFiber Lasers XVI: Technology and Systems 2019 - San Francisco, United States
Duration: Feb 4 2019Feb 7 2019

Publication series

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


ConferenceFiber Lasers XVI: Technology and Systems 2019
Country/TerritoryUnited States
CitySan Francisco


  • Fiber amplifiers
  • High power lasers
  • Phosphate glass
  • Yb-doped fibers

ASJC Scopus subject areas

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


Dive into the research topics of 'More than 100W, 18cm Yb-doped phosphate fiber amplifier'. Together they form a unique fingerprint.

Cite this