High-power linearly-polarized single-frequency thulium-doped fiber master-oscillator power-amplifieropen access
- Authors
- Pearson, Liz; Kim, Ji Won; Zhang, ZW; Ibsen, Morten; Sahu, Jayanta K.; Clarkson, Wesley A.
- Issue Date
- Jan-2010
- Publisher
- Optical Society of America
- Keywords
- Polarization extinction ratio; Optical Devices; Output power; statistical model; Equipment Design; Fibers; Thulium; Beam propagation factor; Ytterbium; Tm-doped; instrumentation; Erbium; Single frequency; chemistry; Induced damage; equipment design; Doped
- Citation
- Optics Express, v.18, no.2, pp 1607 - 1612
- Pages
- 6
- Indexed
- SCI
SCIE
SCOPUS
- Journal Title
- Optics Express
- Volume
- 18
- Number
- 2
- Start Page
- 1607
- End Page
- 1612
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/40027
- DOI
- 10.1364/OE.18.001607
- ISSN
- 1094-4087
- Abstract
- We report a high power narrow-linewidth source at similar to 2 mu m based on a Tm-doped fiber distributed-feedback master-oscillator and three Tm fiber amplifier stages. The master-oscillator and first two amplifier stages were in-band pumped by Er, Yb fiber lasers operating at 1565 nm, and the final stage amplifier was cladding-pumped at 795 nm by two spatially-combined diode-stacks. The MOPA yielded 100 W of single frequency output at 1943 nm with a beam propagation factor (M-2) of 1.25 and with a polarization extinction ratio of >94%. The output power was limited by thermally-induced damage in the final amplifier stage. The prospects for further power scaling are considered. (C) 2010 Optical Society of America
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