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Received: Jan. 22, 2015
Accepted: --
Posted: Feb. 1, 2016
Published Online: Jun. 1, 2020
The Author Email: Mali Gong (gongml@mail.tsinghua.edu.cn)
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Chen Xiao, Xiao Qirong, Jin Guangyong, Yan Ping, Gong Mali. The pump arm numbers of (N+1)×1 couplers[J]. Journal of Infrared and Millimeter Waves, 2016, 35(2): 2016
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Journal of Infrared and Millimeter Waves, Vol. 35, Issue 2, 2016 (2016)
The pump arm numbers of (N+1)×1 couplers
Xiao Chen1, Qirong Xiao2,3, Guangyong Jin1, Ping Yan2, and Mali Gong2,*
Author Affiliations
- 1[in Chinese]
- 2[in Chinese]
- 3[in Chinese]
Abstract
The impact of (N+1)×1 coupler pump arm numbers on the pump coupling efficiency was numerically studied firstly. It is shown that pump coupling efficiency decreases with more pump arms built on the coupler, yet in a slightly decreasing manner. According to the simulation results, side-pumped (1+1)×1 and (2+1)×1 couplers were made. The total output power of the (2+1)×1 coupler is about 681 W, almost two times that of the (1+1)×1 coupler, enhancing the pump light injection capacity of the fiber laser system significantly.
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