Widely Tunable Gain-Switched Er3+-Doped ZrF4 Fiber Laser From 3.4 to 3.7 μm

被引：13

作者：

Yang, Jian ^{[1
]}

Luo, Hongyu ^{[1
]}

Liu, Fei ^{[1
]}

Li, Jianfeng ^{[1
]}

Liu, Yong ^{[1
]}

机构：

[1] Univ Elect Sci & Technol China UESTC, State Key Lab Elect Thin Films & Integrated Devic, Sch Optoelect Sci & Engn, Chengdu 610054, Peoples R China

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2020年 / 32卷 / 20期

基金：

中国国家自然科学基金;

关键词：

Fiber lasers; Laser excitation; Pump lasers; Laser tuning; Power lasers; Optical fiber devices; Mid-infrared; fluoride fiber; laser; gain-switched; PULSE GENERATION;

D O I：

10.1109/LPT.2020.3022428

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We present wide wavelength tuning of a gain- switched Er3+-doped ZrF4 fiber laser in the 3.5 mu m band for the first time to our knowledge. In this case, a dual-wavelength pumping (DWP) scheme is used including a continuous wave (CW) LD at 976 nm and two home-made Tm3+-doped fiber lasers (TDFLs) at 1981 nm operating in Q-switched and CW regimes, respectively. At the pump repetition rate of 50 kHz, stable gain-switched pulses can always be obtained within the whole tuning range of 3397.1 similar to 3690.2 nm (similar to 293 nm) realized with a plane ruled grating. At a wavelength of 3450.5 nm, a maximum average power of 264.5 mW with a corresponding pulse energy of 5.29 mu J and width of 1.02 mu s are achieved. The effects of pump power and laser wavelength on the output characteristics have also been investigated. The results indicate that such a gain-switched laser can be a versatile pulsed source for many applications.

引用

页码：1335 / 1338

页数：4

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