Fifty percent internal slope efficiency femtosecond direct-written Tm 3+:ZBLAN waveguide laser

D. G. Lancaster, S. Gross, H. Ebendorff-Heidepriem, K. Kuan, T. M. Monro, M. Ams, A. Fuerbach, M. J. Withford

Research output: Contribution to journalArticlepeer-review

143 Citations (Scopus)


We report a 790nm pumped, Tm3+ doped ZBLAN glass buried waveguide laser that produces 47mWat 1880nm, with a 50% internal slope efficiency and an M2 of 1.7. The waveguide cladding is defined by two overlapping rings created by femtosecond direct-writing of the glass, which results in the formation of a tubular depressedindex- cladding structure, and the laser resonator is defined by external dielectric mirrors. This is, to the best of our knowledge, the most efficient laser created in a glass host via femtosecond waveguide writing.

Original languageEnglish
Pages (from-to)1587-1589
Number of pages3
JournalOptics Letters
Issue number9
Publication statusPublished or Issued - 1 May 2011
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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