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Efficient in-band pumped Ho:LuLiF4 2 mu m laseropen access
- Authors
- Kim, Ji Won; Mackenzie, Jacob Isa; Parisi, Daniela; Veronesi, S.; Tonelli, Mauro; Clarkson, W. Andrew
- Issue Date
- Feb-2010
- Publisher
- Optical Society of America
- Keywords
- Lasing wavelength; Output power; Transverse mode; Silica fiber lasers; Power-scaling; Resonator design; Slope efficiencies; Laser cladding; Pumping (laser); Output coupling; Silica; Absorbed pump power; Laser performance; Beam propagation factor; Maximum
- Citation
- Optics Letters, v.35, no.3, pp.420 - 422
- Indexed
- SCIE
SCOPUS
- Journal Title
- Optics Letters
- Volume
- 35
- Number
- 3
- Start Page
- 420
- End Page
- 422
- ISSN
- 0146-9592
- Abstract
- An efficient Ho:LuLiF4 laser in-band pumped by a cladding-pumped Tm-doped silica fiber laser operating at 1937 nm is reported. At low-cavity output coupling, the Ho:LuLiF4 laser yielded 5.1 W of output at a wavelength of 2066 nm for 8.0 W of absorbed pump power with a slope efficiency of 70%. At high-cavity output coupling, the lasing wavelength shifted to 2053 nm and the laser produced an output power of 5.4 W with a slope efficiency of 76%. The beam propagation factor (M-2) was measured to be similar to 1.1 at the maximum output power confirming fundamental transverse mode (TEMoo) operation. The influence of resonator design on laser performance is discussed, along with prospects for further power scaling and improvement of the laser efficiency. (C) 2010 Optical Society of America
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Related Researcher
- Kim, Ji Won
- COLLEGE OF SCIENCE AND CONVERGENCE TECHNOLOGY (DEPARTMENT OF PHOTONICS AND NANOELECTRONICS)