2.1 μm waveguide laser fabricated by femtosecond laser direct-writing in Ho3+, Tm3+

ZBLAN glass

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

*Corresponding author for this work

Research output: Contribution to journalArticle

40 Citations (Scopus)
3 Downloads (Pure)

Abstract

We report the first Ho3+ doped waveguide laser, which was realized by femtosecond direct-writing of a depressed cladding structure into ZBLAN glass. Tm3+ sensitizing allows the 9 mm long Ho3+ gain medium to be conveniently pumped at 790 nm, achieving an optical-to-optical slope efficiency of 20% and a threshold of 20 mW. The potentially widely tunable laser produces up to 76mWat 2052 nm and also operates at shorter wavelengths near 1880 nm and 1978 nm for certain cavity configurations.

Original languageEnglish
Pages (from-to)996-998
Number of pages3
JournalOptics Letters
Volume37
Issue number6
DOIs
Publication statusPublished - 15 Mar 2012

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