Opt Express. 2022 Nov 21;30(24):43779-43786. doi: 10.1364/OE.469457.
A regeneratively mode-locked optoelectronic oscillator is proposed to realize multi-mode phase locking in optoelectronic oscillators by coupling a modulating signal generation loop. To verify the feasibility of the scheme, a numerical simulation model is established. In addition, a proof-of-concept experiment is demonstrated in a single-loop optoelectronic oscillator with a 2.2 km polarization-maintaining single-mode fiber, using an electric amplitude modulator/Mach-Zehnder modulator as an active mode-locking device. The generated microwave pulse signal has a center frequency of 10 GHz and a repetition rate of 95 kHz. We believe this scheme can provide a new approach to overcome the problem of detuning between the modulating frequency and the mode spacing during long-term operation.
提出了一种基于再生锁模的光电振荡器，通过耦合调制信号产生环路来实现光电振荡器的多模相位锁定。为了验证该方案的可行性，建立了数值仿真模型。此外，还在一个带有 2.2km 保偏单模光纤的单环光电振荡器中进行了概念验证实验，使用电幅度调制器/马赫-曾德尔调制器作为主动锁模器件。所产生的微波脉冲信号的中心频率为 10GHz，重复频率为 95kHz。我们相信，该方案可以为克服长期运行中调制频率与模式间隔失谐问题提供一种新的途径。
