Noise of the stretched pulse fiber laser. II. Experiments
Noise of the stretched pulse fiber laser. II. Experiments
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DOI：
10.1109/3.572139
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发表时间：
1997-05
影响因子：
2.5
通讯作者：
C. Yu;S. Namiki;H. Haus
中科院分区：
文献类型：
--
作者：
C. Yu;S. Namiki;H. Haus
关于PT，见同上，第649页，1997年。由输出脉冲串照射探测器电流的功率谱确定了展宽脉冲光纤环形激光器的噪声特性。振幅波动低至0.05%的脉冲能量和抖动<80 fs（测量时间=0.09 s），没有外部稳定。这是迄今为止报道的被动锁模激光器的最低噪声水平。将实验结果与配套论文的噪声理论进行了比较。理论与实验结果吻合较好。与理论的比较还表明，当测量时间为0.1 s时，频率高于60 Hz的抖动是由于放大的自发辐射（量子）波动。
For pt.I see ibid., p.649, 1997. The noise characteristics of the stretched pulse fiber ring laser are determined from the power spectrum of the current of a detector illuminated by the output pulse train. Amplitude fluctuations as low as 0.05% of the pulse energy and jitter <80 fs (measurement time=0.09 s) are obtained with no external stabilization. These are the lowest noise levels reported to date for a passively mode-locked laser. The experimental results are compared with the noise theory of the companion paper. Good agreement is obtained between theory and experiment. Comparison with theory also shows that the jitter at frequencies higher than 60 Hz is due to amplified spontaneous emission (quantum) fluctuations when the measurement time is on the order of 0.1 s.