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A Wide-Band Thulium-Doped Silica Fibre Amplifier |
| DU Ge-Guo;LI Da-Jun;LI Hong-Wei;MAI Bing-Liang;YOU Jie-Shun;RUAN Shuang-Chen |
| Shenzhen Key Laboratory of Laser Engineering, College of Electronic Science and Technology, Shenzhen University, Shenzhen 518060 |
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| Cite this article: |
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DU Ge-Guo, LI Da-Jun, LI Hong-Wei et al 2006 Chin. Phys. Lett. 23 3291-3293 |
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Abstract We investigate a silica-based thulium-doped fibre amplifier, which is a promising candidate for an amplifying device in the S band, in detail using a single wavelength upconversion pumping scheme centred at 1064 nm. Our experimental results show that in terms of gain and noise figure, the bi-directional pumping scheme is the best one in the three pumping schemes, named forward, backward and bi-directional pumping schemes. The amplifier has a gain not only in the S band, but also in the C band, even in the L band. The gain is above 3 dB from 1525 nm to 1580 nm with a peak of 7.5 dB.
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| Keywords:
42.81.Wg
42.60.Da
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Published: 01 December 2006
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| PACS: |
42.81.Wg
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(Other fiber-optical devices)
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42.60.Da
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(Resonators, cavities, amplifiers, arrays, and rings)
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