Chin. Phys. Lett.  2004, Vol. 21 Issue (11): 2179-2181    DOI:
Original Articles |
Lasing Characteristics of Tm3+:Ho3+ Codoped Silica Fibre Laser Pumped by 1.18-μm Raman Fibre Laser
DONG Shu-Fu1,2;CHEN Guo-Fu1;WANG Xian-Hua1;ZHAO Shang-Hong2
1State Key Laboratory of Transient Optics Technology, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an 710068 2Telecommunication Engineering Institute, Air Force Engineering University, Xi’an 710077
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DONG Shu-Fu, CHEN Guo-Fu, WANG Xian-Hua et al  2004 Chin. Phys. Lett. 21 2179-2181
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Abstract The fundamental characteristics of Fabry--Perot-cavity continuous-wave Tm--Ho codoped silica fibre lasers pumped by a 1.18 μm Raman fibre laser are presented. A maximum output power of 930 mW at 1880nm is generated for a fibre length of 1 m from the transition of Tm3+, with a slope efficiency of 32.4%. For a 3-m-long fibre, the maximum output power decreases to 650 mW at 1960 nm due to the laser emission from Ho3+ with a lower slope efficiency of 25%, which clearly shows the effective energy transfer from Tm3+ to Ho3+. The wavelength red-shifting of the laser emission originates from the transition competition and the emission cross section difference between Tm3+ and Ho3+.
Keywords: 42.55.Wd      42.60.Da     
Published: 01 November 2004
PACS:  42.55.Wd (Fiber lasers)  
  42.60.Da (Resonators, cavities, amplifiers, arrays, and rings)  
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https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y2004/V21/I11/02179
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DONG Shu-Fu
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