| Autor: |
Shi Yi, Jing Wen, Zou Dongyang, Wu Sixin, Yang Xianheng, Wang Qihua, Yun Luo, You Yunfeng, Feng Jing, Ouyang Li'e, Zhao Pengfei, Liao Ruoyu, Jianjun Wang |
| Rok vydání: |
2021 |
| Předmět: |
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| Zdroj: |
Seventh Symposium on Novel Photoelectronic Detection Technology and Applications. |
| DOI: |
10.1117/12.2586284 |
| Popis: |
The average power scaling of counter pumped Yb-doped monolithic fiber amplifiers emitting a diffraction-limited beam has been investigated. The characteristics of seed laser including linewidth and power are optimized, which are beneficial for the suppression of stimulated Brillouin scattering (SBS), nonlinear-induced spectral broadening and transverse mode instabilities (TMI). The fiber with a mode field area of 700 μm2 is able to amplify a 360 W narrow linewidth seed up to 4.05 kW average output power before the onset of TMI. Up to this power level, a narrow linewidth with (0.372 nm), high optical-to-optical efficiency of 67.6% with diffraction-limited beam quality and without any sign of TMI or stimulated Raman scattering for a spectral dynamic range of higher than -52 dB is obtained. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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