Tunable passively Q-switched ytterbium-doped fiber laser with mechanically exfoliated GaSe saturable absorber
A tunable passively Q-switched ytterbium-doped fiber laser using few-layer gallium selenide (GaSe) as a saturable absorber (SA) is demonstrated. The few-layer GaSe SA, which is fabricated by the mechanical exfoliation method, is able to generate a Q-switched fiber laser that has a maximum repetition...
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| Main Authors: | , , , |
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| Format: | Article |
| Published: |
Chinese Laser Press
2018
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| Subjects: | |
| Online Access: | http://eprints.um.edu.my/22660/ https://doi.org/10.3788/COL201816.020014 |
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| Summary: | A tunable passively Q-switched ytterbium-doped fiber laser using few-layer gallium selenide (GaSe) as a saturable absorber (SA) is demonstrated. The few-layer GaSe SA, which is fabricated by the mechanical exfoliation method, is able to generate a Q-switched fiber laser that has a maximum repetition rate of 92.6 kHz and a minimum pulsed width of 2.3 μs. The highest pulse energy exhibited by the generated pulse is 18.8 nJ with a signal to noise ratio of ∼40 dB. The tunability of the proposed laser covers from 1042 to 1082 nm, giving a tuning range of 40 nm. |
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