High-power and highly efficient diode-cladding-pumped Ho3+-doped silica fiber lasers
S.D. Jackson1, F. Bugge2 , and G. Erbert2
Published in:
Opt. Lett., vol. 32, no. 22, pp. 3349-3351 (2007).
Abstract:
We demonstrate high-power operation from a singly Ho3+-doped silica fiber laser that is cladding pumped directly with diode lasers operating at 1150 nm. Internal slope efficiencies approaching the Stokes limit were produced, and the maximum output power was 2.2 W. This result was achieved using a low Ho3+-ion concentration and La3+-ion codoping, which together limit the transfer of energy between excited Ho3+ ions.
1 Optical Fibre Technology Centre, University of Sydney, 206 National Innovation Centre, Australian Technology Park, Eveleigh 1430, Australia
2 Ferdinand-Braun-Institut für Höchstfrequenztechnik, D-12489 Berlin, Germany
© 2007 Optical Society of America. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the Optical Society of America.
Full version in pdf-format.