A theoretical and experimental investigation of an in-band pumped gain-switched thulium-doped fiber laser

doi:10.1088/1674-1056/22/6/064208

Abstract In this paper, the theoretical rate equation model of in-band pumped gain-switched thulium-doped fiber (TDF) laser is investigated. The analytical formulations of pump energy threshold, peak power extraction efficiency, and pulse extraction efficiency are derived through analyzing the interaction process between pump pulse and laser pulse. They are useful for understanding, designing, and optimizing the in-band pumped TDF lasers in a 1.9 μm-2.1 μm wavelength region. The experiment of all fiber gain-switched TDF laser pumped by 1.558-μ pulse amplifier is conducted, and our experimental results show good agreement with theoretical analysis.

Keywords: pulse fiber laser gain-switched laser thulium-doped fiber (TDF) laser rate equation model laser theory

Received: 11 October 2012
Revised: 16 January 2013
Accepted manuscript online:

PACS:	42.55.Ah	(General laser theory)
	42.55.Wd	(Fiber lasers)
	42.60.Mi	(Dynamical laser instabilities; noisy laser behavior)

Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 60878011 and 61078008) and the Program for New Century Excellent Talents in University, China (Grant No. NCET-10-0067).

Corresponding Authors: Zhou Ren-Lai
E-mail: zrlhit@126.com

Cite this article:

Zhou Ren-Lai (周仁来), Ju You-Lun (鞠有伦), Zhao Jie (赵杰), Yang Chao(杨超), Wang Yue-Zhu(王月珠) A theoretical and experimental investigation of an in-band pumped gain-switched thulium-doped fiber laser 2013 Chin. Phys. B 22 064208

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A theoretical and experimental investigation of an in-band pumped gain-switched thulium-doped fiber laser

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