频率漂移
虚假关系
注入锁定
材料科学
循环(图论)
光学
反馈回路
物理
光电子学
激光器
补偿(心理学)
振荡(细胞信号)
压控振荡器
信号(编程语言)
本振子
电压
相位噪声
计算机科学
程序设计语言
机器学习
组合数学
生物
量子力学
遗传学
计算机安全
数学
心理学
精神分析
作者
Zhiqiang Fan,Qi Qiu,Jun Su,Tianhang Zhang
出处
期刊:Optics Letters
[The Optical Society]
日期:2019-01-22
卷期号:44 (3): 534-534
被引量:24
摘要
A finely tunable low-drift spurious-free single-loop optoelectronic oscillator (OEO) incorporating injection locking and time delay compensation is proposed and experimentally demonstrated. In the proposed OEO, one mode of a single-loop OEO is injection locked by a tunable electronic oscillator resulting in single-mode oscillation. A time delay compensation system is used to compensate the OEO's loop length change caused by environmental changes, such as temperature and strain. Tuning of the oscillation frequency is realized by controlling the injection frequency and absolute loop length of the single-loop OEO. In the experiments, when the ambient temperature varies between 22°C and 31°C within 1000 s, an output signal at the frequency of 10.664 GHz with a frequency drift better than -0.1 ppb and side-mode suppression ratio greater than 78 dB has been realized. Also, the OEO can be tuned with a precise frequency step of 10 Hz.
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