High-energy pulsed operation of a Yb fibre master oscillator power amplifier with an amplified spontaneous emission light source
- Title
- High-energy pulsed operation of a Yb fibre master oscillator power amplifier with an amplified spontaneous emission light source
- Author
- 김지원
- Keywords
- master oscillator power amplifier; spontaneous emission; pulsed operation; stimulated Brillouin scattering; fiber laser
- Issue Date
- 2019-07
- Publisher
- IOP PUBLISHING LTD
- Citation
- LASER PHYSICS LETTERS, v. 16, No. 8, Article no. 085108
- Abstract
- We report high-energy pulsed operation of an amplified spontaneous emission (ASE) light source at 1050 nm based on a Yb-doped fiber master oscillator power amplifier (MOPA). The ASE seed beam with a tailored spectral bandwidth was temporally modulated by an acoustooptic modulator and was amplified in three Yb fiber amplifier stages. The MOPA yielded 320.7 mu J and 415.0 mu J of the pulsed outputs at a 100 kHz repetition rate for the ASE seeds with 1 nm and 2 nm bandwidths, respectively. Investigation of stimulated Brillouin scattering (SBS) in Yb fibers showed that ASE light pulses could offer a higher pulse energy than laser pulses due to the higher SBS threshold. We will discuss the prospects of further power scaling in a fiber ASE light source with a broad bandwidth by overcoming the SBS limitation.
- URI
- https://iopscience.iop.org/article/10.1088/1612-202X/ab2c6a/metahttps://repository.hanyang.ac.kr/handle/20.500.11754/117396
- ISSN
- 1612-2011; 1612-202X
- DOI
- 10.1088/1612-202X/ab2c6a
- Appears in Collections:
- COLLEGE OF SCIENCE AND CONVERGENCE TECHNOLOGY[E](과학기술융합대학) > PHOTONICS AND NANOELECTRONICS(나노광전자학과) > Articles
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