Noise-like rectangular pulses in a mode-locked double-clad Er:Yb laser with a record pulse energy

doi:10.1088/1674-1056/ab578a

中国物理B ›› 2020, Vol. 29 ›› Issue (1): 14202-014202.doi: 10.1088/1674-1056/ab578a

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇下一篇

Noise-like rectangular pulses in a mode-locked double-clad Er:Yb laser with a record pulse energy

Tianyi Wu(吴田宜), Zhiyuan Dou(窦志远), Bin Zhang(张斌), Jing Hou(侯静)

1 College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha 410073, China;
2 State Key Laboratory of Pulsed Power Laser Technology, Changsha 410073, China;
3 Hunan Provincial Key Laboratory of High Energy Laser Technology, Changsha 410073, China

收稿日期:2019-08-24 修回日期:2019-09-15 出版日期:2020-01-05 发布日期:2020-01-05
通讯作者: Jing Hou E-mail:houjing25@sina.com
基金资助:
Project supported by the National Natural Science Foundation of China (Grant Nos. 61435009, 61235008, and 61405254).

Noise-like rectangular pulses in a mode-locked double-clad Er:Yb laser with a record pulse energy

Tianyi Wu(吴田宜)¹, Zhiyuan Dou(窦志远)¹, Bin Zhang(张斌)^1,2,3, Jing Hou(侯静)^1,2,3

1 College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha 410073, China;
2 State Key Laboratory of Pulsed Power Laser Technology, Changsha 410073, China;
3 Hunan Provincial Key Laboratory of High Energy Laser Technology, Changsha 410073, China

Received:2019-08-24 Revised:2019-09-15 Online:2020-01-05 Published:2020-01-05
Contact: Jing Hou E-mail:houjing25@sina.com
Supported by:
Project supported by the National Natural Science Foundation of China (Grant Nos. 61435009, 61235008, and 61405254).

摘要/Abstract

摘要： Generation of noise-like rectangular pulse was investigated systematically in an Er-Yb co-doped fiber laser based on an intra-cavity coupler with different coupling ratios. When the coupling ratio was 5/95, stable mode-locked pulses could be obtained with the pulse packet duration tunable from 4.86 ns to 80 ns. The repetition frequency was 1.186 MHz with the output spectrum centered at 1.6 μ. The average output power and single pulse energy reached a record 1.43 W and 1.21 μJ, respectively. Pulse characteristics under different coupling ratios (5/95, 10/90, 20/80, 30/70, 40/60) were also presented and discussed.

关键词: rectangular noise-like pulse, mode-locked laser, Er-Yb co-doped fiber laser

Abstract: Generation of noise-like rectangular pulse was investigated systematically in an Er-Yb co-doped fiber laser based on an intra-cavity coupler with different coupling ratios. When the coupling ratio was 5/95, stable mode-locked pulses could be obtained with the pulse packet duration tunable from 4.86 ns to 80 ns. The repetition frequency was 1.186 MHz with the output spectrum centered at 1.6 μ. The average output power and single pulse energy reached a record 1.43 W and 1.21 μJ, respectively. Pulse characteristics under different coupling ratios (5/95, 10/90, 20/80, 30/70, 40/60) were also presented and discussed.

Key words: rectangular noise-like pulse, mode-locked laser, Er-Yb co-doped fiber laser

中图分类号: (Fiber lasers)

42.55.Wd

42.60.Da (Resonators, cavities, amplifiers, arrays, and rings) 42.60.Fc (Modulation, tuning, and mode locking)

吴田宜, 窦志远, 张斌, 侯静. Noise-like rectangular pulses in a mode-locked double-clad Er:Yb laser with a record pulse energy[J]. 中国物理B, 2020, 29(1): 14202-014202.

Tianyi Wu(吴田宜), Zhiyuan Dou(窦志远), Bin Zhang(张斌), Jing Hou(侯静). Noise-like rectangular pulses in a mode-locked double-clad Er:Yb laser with a record pulse energy[J]. Chin. Phys. B, 2020, 29(1): 14202-014202.

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Noise-like rectangular pulses in a mode-locked double-clad Er:Yb laser with a record pulse energy

Noise-like rectangular pulses in a mode-locked double-clad Er:Yb laser with a record pulse energy

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