Amplification of a Q-Switched Ho:GdVO4 Oscillator in Thulium-Doped Large-Mode-Area Fiber


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Аннотация

We report a high peak power, narrow linewidth, stable pulsed Ho:GdVO4 amplifier based on thuliumdoped fiber, which produces 6.65 W average output power at 2,048 nm and 56.8 kW peak power with 11.7 ns pulse width at 10 kHz repetition rate. We use a simple Q-switched Ho:GdVO4 laser as a seed laser and a thulium-doped fiber pumped by a 792 nm laser diode as an amplifier. The fiber amplifier provided 6.5 dB gain to the input signal. The spectral linewidth of the Ho:GdVO4 amplifier remains < 0.5 nm with an M2 beam quality of 1.36.

Авторлар туралы

T. Dai

Research Center for Space Optics Engineering, Harbin Institute of Technology; National Key Laboratory of Tunable Laser Technology, Harbin Institute of Technology

Email: hitfish@126.com
ҚХР, Harbin, 150001; Harbin, 150080

Z. Fan

Research Center for Space Optics Engineering, Harbin Institute of Technology

Хат алмасуға жауапты Автор.
Email: hitfish@126.com
ҚХР, Harbin, 150001

Y. Ding

National Key Laboratory of Tunable Laser Technology, Harbin Institute of Technology

Email: hitfish@126.com
ҚХР, Harbin, 150080

Y. Ju

National Key Laboratory of Tunable Laser Technology, Harbin Institute of Technology

Email: hitfish@126.com
ҚХР, Harbin, 150080

Y. Li

National Key Laboratory of Tunable Laser Technology, Harbin Institute of Technology

Email: hitfish@126.com
ҚХР, Harbin, 150080

B. Yao

National Key Laboratory of Tunable Laser Technology, Harbin Institute of Technology

Email: hitfish@126.com
ҚХР, Harbin, 150080

Y. Wang

National Key Laboratory of Tunable Laser Technology, Harbin Institute of Technology

Email: hitfish@126.com
ҚХР, Harbin, 150080

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