Efficient thulium-doped 2-μm germanate fiber laser

Jianfeng Wu, Shibin Jiang, Tao Luo, Jihong Geng, N. Peyghambarian, Norman P. Barnes

Research output: Contribution to journalArticlepeer-review

90 Scopus citations

Abstract

We report an efficient fiber laser operating near 2 μm. The glass for the fiber is germanate that is highly doped with thulium. The effect of cross relaxation energy transfer between thulium ions as observed from emission spectrum of the glass samples results in the laser having a very high slope efficiency of 58% with respect to launched power. This corresponds to a quantum efficiency of 1.79, indicating that each pump photon leads to near 1.8 excited Tm3+ ions.

Original languageEnglish (US)
Pages (from-to)334-336
Number of pages3
JournalIEEE Photonics Technology Letters
Volume18
Issue number2
DOIs
StatePublished - Jan 15 2006
Externally publishedYes

Keywords

  • Germanate glass
  • Optical fiber lasers
  • Slope efficiency
  • Thulium

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Efficient thulium-doped 2-μm germanate fiber laser'. Together they form a unique fingerprint.

Cite this