Experimental study of 1550 nm single frequency pulsed fiber laser amplifiers

HE Xing-kai; HOU Hui; FENG Li-tian; WU Bo; SHEN Qi-hao; HOU Tian-jin; LAN Ge; ZHOU Ding-fu

doi:10.3969/j.issn.1001-3806.2011.02.001

In order to meet the requirements of coherent detection,a high power,single frequency,1550nm pulsed fiber laser was studied based on all-fiber master oscillator power amplifier technique.A single mode pulsed laser was obtained with 400ns pulse duration,10kHz pulse repetition rate,148mW average power and 14μJ pulse energy.It was also found that the pulse shape was destroyed by the stimulated Brillouin scattering(SBS)resulting from the higher power density in the fiber.Then a way was put forward to suppress the SBS effect.The experimental results show that the SBS must be suppressed in order to improve the power.

Experimental study of 1550 nm single frequency pulsed fiber laser amplifiers

Corresponding author: LAN Ge, office@xiwu.net;

1. Southwest Institute of Technical Physics, Chengdu 610041, China;

2. Military Deputy of Aero-Army in Chengdu, Chengdu 610041, China

Received Date: 2010-07-13

Accepted Date: 2010-08-02

Available Online: 2011-03-25

Abstract: In order to meet the requirements of coherent detection,a high power,single frequency,1550nm pulsed fiber laser was studied based on all-fiber master oscillator power amplifier technique.A single mode pulsed laser was obtained with 400ns pulse duration,10kHz pulse repetition rate,148mW average power and 14μJ pulse energy.It was also found that the pulse shape was destroyed by the stimulated Brillouin scattering(SBS)resulting from the higher power density in the fiber.Then a way was put forward to suppress the SBS effect.The experimental results show that the SBS must be suppressed in order to improve the power.

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Reference (10)

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Experimental study of 1550 nm single frequency pulsed fiber laser amplifiers

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