Abstract

Tm-doped 790-nm-pumped silica fiber lasers are excellent candidates for producing emission at <1.95μm, but achieving efficient operation at these wavelengths requires careful attention to fiber design because of the characteristic three-level reabsorption effects. We present a discussion of methods for mitigation of these effects and two high-efficiency systems that are capable of producing up to 70W at <1.92μm.

© 2009 Optical Society of America

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