Chinese Optics Letters, Volume. 11, Issue 9, 090603(2013)
Effective SNR improvement using a high-power pulsed pump in an ytterbium-doped fiber amplifier
A high-power pulsed pump method is proposed to obtain a high-energy output with an improved signaltonoise ratio (SNR) during pulse amplification. Based on numerical analysis, the ytterbium-doped fiber amplifiers are compared under different pumping conditions. At the same signal gain, the output using the high-power pulsed pump shows great SNR improvement and reduced output signal distortion, compared with a continuous-wave pump and a low-power pulsed pump. By adjusting the pump parameters, the amplifier can achieve the optimal output SNR without sacrificing the signal gain. We believe that the high-power pulsed pump scheme is very suitable for the high-energy nanosecond pulse amplification, which has a high SNR requirement.
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Jing Liu, Lixin Xu, Anting Wang, Chun Gu, Qing Liu, Ankun Wei, Teng Xu, Hai Ming. Effective SNR improvement using a high-power pulsed pump in an ytterbium-doped fiber amplifier[J]. Chinese Optics Letters, 2013, 11(9): 090603
Category: Fiber Optics and Optical Communications
Received: May. 4, 2013
Accepted: Jul. 12, 2013
Published Online: Sep. 3, 2013
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