Chin. Phys. Lett.  2006, Vol. 23 Issue (12): 3291-3293    DOI:
Original Articles |
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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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.
Keywords: 42.81.Wg      42.60.Da     
Published: 01 December 2006
PACS:  42.81.Wg (Other fiber-optical devices)  
  42.60.Da (Resonators, cavities, amplifiers, arrays, and rings)  
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https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y2006/V23/I12/03291
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DU Ge-Guo
LI Da-Jun
LI Hong-Wei
MAI Bing-Liang
YOU Jie-Shun
RUAN Shuang-Chen
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