Low-Noise, Robust, All-Polarization-Maintaining Mode-Locked Er-Doped Fiber Ring Laser
Low-Noise, Robust, All-Polarization-Maintaining Mode-Locked Er-Doped Fiber Ring Laser
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DOI：
10.1109/lpt.2018.2836178
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发表时间：
2018-06
影响因子：
2.6
通讯作者：
Zhiwei Zhu;Yang Liu;Wenchao Zhang;D. Luo;Chao Wang;Lian Zhou;Zejiang Deng;Wenxue Li
中科院分区：
文献类型：
--
作者：
Zhiwei Zhu;Yang Liu;Wenchao Zhang;D. Luo;Chao Wang;Lian Zhou;Zejiang Deng;Wenxue Li
报道了一种低噪声、坚固耐用的全偏振(PM)锁模光纤环形激光器，指出了一种通过调节泵浦功率来进一步优化相位噪声的有效方法。在10赫兹到10兆赫的频率范围内，优化的时序抖动低至269fS，幅度噪声为0.028%。实验结果与一系列模拟和数值分析的预测相吻合，表明通过重新平衡增益、色散和非线性之间的相互作用，相位噪声性能得到了改善，高脉冲能量和较短的脉冲宽度有助于降低相位噪声，直到非线性开始抵消这一好处。该激光器由封装的半导体可饱和吸收镜和全PM光纤环形结构组成，在振动环境中输出脉冲可靠，并抑制了来自外部干扰的大部分技术噪声。
We report on a low-noise, robust, all-polarization-maintaining (PM) mode-locked Er-doped fiber ring laser, indicating an effective method to further optimize the phase noise by adjusting the pump power. Integrated from 10 Hz to 10 MHz, the optimized timing jitter is as low as 269 fs with an amplitude noise of 0.028%. The experimental results agree well with the prediction in a series of simulations and numerical analyses, revealing that the phase noise performance is improved by rebalancing the interactions between the gain, dispersion, and nonlinearity, and the high pulse energy and short pulse duration contribute to a reduction in the phase noise until the nonlinearities begin to neutralize the benefit. Consisting of a packaged semiconductor saturable absorber mirror and an all-PM-fiber ring structure, the laser performs well with reliable output pulses in vibrational environments, and most of the technical noise from external disturbances is also suppressed.