Bulk α-alumina embedded tapered fiber as Q-switcher in an erbiumdoped fiber laser
We present bulk α-alumina (Al2O3) in a polydimethylsiloxane matrix decorated tapered fiber as a Q-switcher for microsecond pulse generation. The integration of α-Al2O3-saturable absorber(SA) in an erbium-doped fiber laser yielded a Q-switched operating regime within 62.0–308.6 mW pump power. The sho...
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| Main Authors: | , , , , , , |
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| 格式: | Article |
| 语言: | English |
| 出版: |
iop
2024
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| 主题: | |
| 在线阅读: | http://eprints.uthm.edu.my/12296/1/J17731_a74087427adf5da2a32941eeac52703f.pdf http://eprints.uthm.edu.my/12296/ https://doi.org/10.1088/1402-4896/ad447f |
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| 总结: | We present bulk α-alumina (Al2O3) in a polydimethylsiloxane matrix decorated tapered fiber as a Q-switcher for microsecond pulse generation. The integration of α-Al2O3-saturable absorber(SA) in an erbium-doped fiber laser yielded a Q-switched operating regime within 62.0–308.6 mW pump power. The shortest pulse width was 7 μs, whereas the repetition rate was tunable from 19.17 to 43.24 kHz. This work reveals a substantial improvement over previously reported Al2O3-SA works with a recorded pulse energy of 150.32 nJ and an estimated damage threshold of beyond 6.75 GW cm−2 incident intensity. Our findings suggest that α-Al2O3-SA has enormous potential as a next generation light-absorbing material for high-energy photonic devices. |
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