Infrared and Laser Engineering, Volume. 47, Issue 8, 803009(2018)
Q-switched mode-locking noise-like rectangular pulses erbium-doped fiber laser
The Q-switched mode-locking(QML) rectangular pulses in the L-band erbium-doped passively mode-locked fiber laser based on nonlinear polarization rotation technique was researched experimentally. The Q-switched envelope of this type of pulses contained the rectangular pulse with fundamental repetition rate, which was confirmed as noise-like pulse by an autocorrelator. A 250 m long section of single mode fiber was inserted into the cavity to ensure the noise-like rectangular pulses easy to be obtained. By carefully adjusting polarization controllers and pump power in the cavity, both the continuous-wave mode-locking noise-like rectangular pulses with fundamental repetition rate of 778.21 kHz and the QML noise-like rectangular pulses with tunable repetition rate from 3.81 kHz to 9.01 kHz and the highest energy of Q-switched pulse envelop 1.06 μJ were achieved. The research results further reveal the fundamental physics of noise-like pulses and QML operation in the passively mode-locked fiber lasers.广东省大学生创新创业训练计划(201611847093)
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Liang Peiru, Ning Qiuyi, Chen Weicheng. Q-switched mode-locking noise-like rectangular pulses erbium-doped fiber laser[J]. Infrared and Laser Engineering, 2018, 47(8): 803009
Category: 特约专栏-"超快光纤激光技术专栏(一)"
Received: Mar. 5, 2018
Accepted: Apr. 3, 2018
Published Online: Aug. 29, 2018
The Author Email: Peiru Liang (418380663@qq.com)