Dual-wavelength thulium ytterbium Co-doped fiber laser
We report on the generation of dual-wavelength fiber laser peaking at 1990.64 and 1998.92 nm with a simple ring cavity setup. The lasers are demonstrated using a fabricated silica-based nanoengineered octagonal shaped double-clad Thulium-Ytterbium co-doped fiber (TYDF) as a gain medium in a simpl...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English English |
| Published: |
Institute of Advanced Engineering and Science (IAES)
2017
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/62818/ http://irep.iium.edu.my/62818/ http://irep.iium.edu.my/62818/ http://irep.iium.edu.my/62818/1/62818_Dual-wavelength%20thulium%20ytterbium_article.pdf http://irep.iium.edu.my/62818/2/62818_Dual-wavelength%20thulium%20ytterbium_scopus.pdf |
| Summary: | We report on the generation of dual-wavelength fiber laser peaking at 1990.64 and 1998.92 nm
with a simple ring cavity setup. The lasers are demonstrated using a fabricated silica-based nanoengineered
octagonal shaped double-clad Thulium-Ytterbium co-doped fiber (TYDF) as a gain medium in
a simple all-fiber ring configuration. By using 980 nm multimode laser, a stable dual-wavelength laser is
generated at a threshold pump power of 1500 mW due to the non-polarization rotation (NPR) effect
occurred in the cavity. The effect has been self-controlled by a suppression of mode competition in the
gain medium. The result shows that the slope efficiency of the generated dual–wavelength laser is
measured to be 27.23%. This dual-wavelength TYDF laser operated steadily at room temperature with a
34 dB optical signal-to-noise ratio |
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