High-power ytterbium-doped fibre master-oscillator power-amplifier at 1018 nm
- Title
- High-power ytterbium-doped fibre master-oscillator power-amplifier at 1018 nm
- Author
- 김지원
- Keywords
- high-power lasers; master-oscillator power-amplifier; Yb fibre lasers; tandem pumping
- Issue Date
- 2022-02
- Publisher
- Maik Nauka/Interperiodica Publishing
- Citation
- Laser Physics, v. 32, NO. 2, article no. 025103, Page. 1-6
- Abstract
- A high-power master-oscillator power-amplifier (MOPA) at 1018 nm employing ytterbium (Yb)-doped fibres as a gain medium is reported. Utilizing a diffraction grating as a reflector, we could successfully suppress the influence of the broadband amplified spontaneous emission on the master-oscillator or the power-amplifier, resulting in stable amplification of the laser signal at 1018 nm. Based on a simple theoretical simulation on gain spectra and experimental investigation on parasitic lasing thresholds, the Yb fibre MOPA constructed in-house yielded 220 W of output at 1018 nm with a beam propagation factor (M-2) of 1.1. The prospects for further power scaling are considered.
- URI
- https://iopscience.iop.org/article/10.1088/1555-6611/ac46d1https://repository.hanyang.ac.kr/handle/20.500.11754/185235
- ISSN
- 1054-660X;1555-6611
- DOI
- 10.1088/1555-6611/ac46d1
- Appears in Collections:
- COLLEGE OF SCIENCE AND CONVERGENCE TECHNOLOGY[E](과학기술융합대학) > PHOTONICS AND NANOELECTRONICS(나노광전자학과) > Articles
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