Single-pass waveguide amplifiers in Er-Yb doped zinc polyphosphate glass fabricated with femtosecond laser pulses

L.B. Fletcher, J.J. Witcher, N. Troy, R.K. Brow, D.M. Krol

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

We have investigated the direct fabrication of subsurface waveguide amplifiers in Er-Yb zinc polyphosphate glass by utilizing the relationship between the initial glass composition and the resulting changes to the network structure after modification by fs laser pulses. Waveguides, exhibiting internal gain of 1 dB∕cm at 1.53 μm when pumped with 500 mW at 976 nm, were directly fabricated using a regenerative amplified Ti:sapphire 1 kHz, 180 fs laser system. Optical properties as well as insertion losses and internal gain are reported.
Original languageEnglish
Pages (from-to)1148-1150
Number of pages3
JournalOptics Letters
Volume37
Issue number7
DOIs
Publication statusPublished - 2012

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