Tracking performance of optical phase locking loop with frequency discrimination and control subloop
Tracking performance of optical phase locking loop with frequency discrimination and control subloop
复制标题
具有鉴频和控制子环的光学锁相环的跟踪性能
DOI：
10.1117/1.oe.55.5.056112
复制
发表时间：
2016-05
影响因子：
1.3
通讯作者：
Qi Qiu
中科院分区：
文献类型：
--
作者：
Zhiyong Wang;Shuangjin Shi;Jun Su;Qi Qiu
抽象的。光锁相是零差相干光通信、相干光探测和主动相干激光合束的关键技术。在这些应用中，环境温度变化和机械振动会影响锁相精度，甚至导致失锁。这些干扰通常相当于在环路中引入相位抖动、相位阶跃、频率斜坡和频率阶跃。引入鉴频和控制子环来改进频率捕获，并对跟踪性能进行了实验研究。该环路可以在 0.2 ms 内跟踪相位步长，并精确跟踪 ±π/2 正弦相位抖动，抖动频率低于 1 kHz。对于频率斜坡，斜坡速率低于 40MHz/s 时，残余相位误差不受影响。鉴频控制子环使环路在大于吸合频率的频率步长下快速锁定。对于 1 MHz 频率步长，平均跟踪时间为 31 ms。最大可跟踪频率步长约为 160 MHz。具有鉴频和控制子环路的环路可以跟踪相位和频率的连续或阶跃变化。
Abstract. Optical phase locking is a key technique in homodyne coherent optical communication, coherent optical detection, and active coherent laser beam combination. In these applications, environmental temperature variation and mechanical vibration would affect the accuracy of phase locking, or even cause losing lock. These disturbances are generally equivalent to introducing phase jitter, phase step, frequency ramp, and frequency step in the loop. A frequency discrimination and control subloop is introduced to improve the frequency acquisition, and the tracking performance is studied experimentally. The loop can track phase step in 0.2 ms, and precisely track ±π/2 sine phase jitter for jittering frequency lower than 1 kHz. For frequency ramp, the residual phase error is unaffected for ramping rates slower than 40 MHz/s. The frequency discrimination and control subloop makes the loop lock quickly under a frequency step larger than the pull-in frequency. The mean tracking time is 31 ms for a 1 MHz frequency step. The maximum trackable frequency step is around 160 MHz. Continuous or step variation of phase and frequency could be tracked by the loop with the frequency discrimination and control subloop.
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影响因子：
3.6
作者：
Goodno, GD;Komine, H;Injeyan, H
通讯作者：
Injeyan, H
DOI：
10.1117/12.876564
发表时间：
2011-02
期刊：
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影响因子：
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DOI：
10.1063/1.2823330
发表时间：
2008-01
期刊：
The Review of scientific instruments
影响因子：
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作者：
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影响因子：
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作者：
Ristic, Sasa;Bhardwaj, Ashish;Johansson, Leif A.
通讯作者：
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DOI：
10.1117/12.880306
发表时间：
2011-03
期刊：
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影响因子：
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作者：
Vladimir Kuperschmidt;L. Stolpner;P. Mols;M. Alalusi;A. Mehnert;R. Barsan;F. Ansari
通讯作者：
Vladimir Kuperschmidt;L. Stolpner;P. Mols;M. Alalusi;A. Mehnert;R. Barsan;F. Ansari