Volume 5 Issue 6
Dec.  2012
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LIU Liang, CUI Jun-wei, LI Wen-jing, WANG Ji, ZHANG Yun-qi, LIU Gui-qi, PENG Yi-xin. Yb3+-doped double-clad quasi-continuous wave fiber laser pumped by laser diode[J]. Chinese Optics, 2012, 5(6): 663-670. doi: 10.3788/CO.20120506.0663
Citation: LIU Liang, CUI Jun-wei, LI Wen-jing, WANG Ji, ZHANG Yun-qi, LIU Gui-qi, PENG Yi-xin. Yb3+-doped double-clad quasi-continuous wave fiber laser pumped by laser diode[J]. Chinese Optics, 2012, 5(6): 663-670. doi: 10.3788/CO.20120506.0663

Yb3+-doped double-clad quasi-continuous wave fiber laser pumped by laser diode

doi: 10.3788/CO.20120506.0663
  • Received Date: 13 Sep 2012
  • Rev Recd Date: 15 Nov 2012
  • Publish Date: 10 Dec 2012
  • The theoretical mode and structure composition of a fiber laser are introduced in this paper, and a double-clad Yb3+-doped quasi-continuous wave fiber laser system is set up by using 976 nm LD as pumped source. A square wave generator circuit for the laser pulse power source is developed, which can offer a repetition frequency below 1 000 Hz, pulse adjustable width between 10 s and 50 ms and duty ratio under 50% in a pulse mode. The characteristics and energy level system of the 11 m Yb3+ doped double-clad fiber laser are researched, and its ouput characteristics are measured. The results show that the highest output power is 2.67 W at pulse width of 10 ms and repetition frequency of 50 Hz when the maximum pump power is 8.12 W.

     

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