Efficient wavelength-tunable operation of tandem-pumped Yb fiber lasers
- Authors
- Jung, Yeji; Jeon, Minjee; Jeong, Hoon; Kim, Ji Won
- Issue Date
- Feb-2017
- Publisher
- Springer Verlag
- Citation
- Applied Physics B: Lasers and Optics, v.123, no.2, pp.1 - 6
- Indexed
- SCIE
SCOPUS
- Journal Title
- Applied Physics B: Lasers and Optics
- Volume
- 123
- Number
- 2
- Start Page
- 1
- End Page
- 6
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/10507
- DOI
- 10.1007/s00340-016-6636-0
- ISSN
- 0946-2171
- Abstract
- Highly efficient operation of double-clad Yb fiber lasers with fixed-wavelength and wavelength-tunable resonator configurations tandem-pumped by tunable Yb fiber lasers is reported. When wavelength selection was achieved using volume Bragg gratings in an external feedback cavity, the tandem-pumped Yb fiber laser produced maximum output powers of 7.0, 6.8, and 6.4 W at 1070 nm, corresponding to slope efficiencies of 88.2, 87.8, and 89.5%, for pump wavelengths of 1020, 1025, and 1030 nm, respectively. The wavelength-tunable fiber laser employing volume Bragg gratings and diffraction gratings was tuned from 1055 to 1112 nm with a linewidth of similar to 0.3 nm (FWHM), which was in good agreement with the calculated gain spectra. Optimization of tandem-pumped Yb fiber lasers and the prospect for further improvement in performance are considered.
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