Experimental investigation of high power pulsed 2.8 μm Er3+-doped ZBLAN fiber lasers

Yanlong Shen; Yishan Wang; Ke Huang; Kunpeng Luan; Hongwei Chen; Mengmeng Tao; Li Yu; Aiping Yi; Jinhai Si

doi:10.1117/12.2267824

12 May 2017 Experimental investigation of high power pulsed 2.8 μm Er³⁺-doped ZBLAN fiber lasers

Yanlong Shen, Yishan Wang, Ke Huang, Kunpeng Luan, Hongwei Chen, Mengmeng Tao, Li Yu, Aiping Yi, Jinhai Si

Proceedings Volume 10173, Fourth International Symposium on Laser Interaction with Matter; 101731K (2017) https://doi.org/10.1117/12.2267824
Event: 4th International Symposium on Laser Interaction with Matter, 2016, Chengdu, China

Abstract

We report on the recent progress on high power pulsed 2.8 μm Er³⁺-doped ZBLAN fiber laser through techniques of passively and actively Q-switching in our research group. In passively Q-switched operation, a diode-cladding-pumped mid-infrared passively Q-switched Er³⁺-doped ZBLAN fiber laser with an average output power of watt-level based on a semiconductor saturable absorber mirror (SESAM) was demonstrated. Stable pulse train was produced at a slope efficient of 17.8% with respect to launched pump power. The maximum average power of 1.01 W at a repetition rate of 146.3 kHz was achieved with a corresponding pulse energy of 6.9 μJ. The maximum peak power was calculated to be 21.9 W. In actively Q-switched operation, a diode-pumped actively Q-switched Er³⁺-doped ZBLAN fiber laser at 2.8 μm with an optical chopper was reported. The maximum laser pulse energy of up to 130 μJ and a pulse width of 127.3 ns at a repetition rate of 10 kHz with an operating wavelength of 2.78 μm was obtained, yielding the maximum peak power of exceeding 1.1 kW.

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Yanlong Shen, Yishan Wang, Ke Huang, Kunpeng Luan, Hongwei Chen, Mengmeng Tao, Li Yu, Aiping Yi, and Jinhai Si "Experimental investigation of high power pulsed 2.8 μm Er³⁺-doped ZBLAN fiber lasers", Proc. SPIE 10173, Fourth International Symposium on Laser Interaction with Matter, 101731K (12 May 2017); https://doi.org/10.1117/12.2267824

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KEYWORDS

Fiber lasers

Q switched lasers

ZBLAN

Erbium

Q switches

Pulsed laser operation

Mid-IR

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