An Optical Domain Combined Dual-Loop Optoelectronic Oscillator
An Optical Domain Combined Dual-Loop Optoelectronic Oscillator
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DOI：
10.1109/lpt.2007.897290
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发表时间：
2007-06
影响因子：
2.6
通讯作者：
Jiang Yang;Y. Jin-long;Wang Yao-tian;Zhang Li-tai;Yang En-ze
中科院分区：
文献类型：
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作者：
Jiang Yang;Y. Jin-long;Wang Yao-tian;Zhang Li-tai;Yang En-ze
双环路光电振荡器（OEO）能够有效地抑制每个单环路中的边模。本文提出了一种双环OEO方案。通过使用偏振分束器和偏振合束器，两个环路在光域中直接连接，而无需添加任何有源电气器件。讨论了激光器的相位-强度噪声。实验结果表明，在12 GHz频率下，相位噪声为-109 dBc/Hz，Q值为1010，边模抑制比为60 dB，比传统的边模抑制比提高了30- 50 dB。同时，实验比较表明，该结构没有引入明显的噪声
A dual loop optoelectronic oscillator (OEO) is able to effectively suppress the sidemodes in each single loop. In this paper, a dual-loop OEO scheme is reported. By utilizing a polarization-beam splitter and a polarization-beam combiner, the two loops are directly joined in the optical domain without adding any active electrical device. The laser's phase-to-intensity noise is discussed. We present free-running experimental results, which show a phase noise of -109 dBc/Hz at 10kHz away from the carrier (12 GHz) and a Q value of 1010 with a sidemode suppression ratio of 60 dB, which is improved by 30-50dB in the experimental comparison. Meanwhile, the experimental comparison indicates that no significant noise is introduced by this configuration