High-power and highly efficient diode-cladding-pumped Ho3+-doped silica fiber lasers

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 2.2W. This result was achieved using a low...

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Bibliographic Details
Published in:Optics letters 2007-11, Vol.32 (22), p.3349-3351
Main Authors: JACKSON, Stuart D, BUGGE, Frank, ERBERT, Götz
Format: Article
Language:English
Subjects:
Beam characteristics: profile, intensity, and power
spatial pattern formation
Diode-pumped lasers
Exact sciences and technology
Fiber lasers
Fundamental areas of phenomenology (including applications)
Laser optical systems: design and operation
Lasers
Optics
Physics
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Summary: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 2.2W. 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.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.32.003349