Advanced Photonics, 2020, 2 (4): 044001, Published Online: Jul. 27, 2020   

Recent advances in optoelectronic oscillators Download: 1093次

Author Affiliations
1 Chinese Academy of Sciences, Institute of Semiconductors, State Key Laboratory on Integrated Optoelectronics, Beijing, China
2 University of Chinese Academy of Sciences, School of Electronic, Electrical, and Communication Engineering, Beijing, China
3 University of Chinese Academy of Sciences, Center of Materials Science and Optoelectronics Engineering, Beijing, China
4 Beijing University of Posts and Telecommunications, State Key Laboratory of Information Photonics and Optical Communications, Beijing, China
5 Universitat Politécnica de Valencia, ITEAM Research Institute, Photonics Research Labs, Valencia, Spain
6 University of Ottawa, Microwave Photonics Research Laboratory, Ottawa, Ontario, Canada
Abstract
An optoelectronic oscillator (OEO) is a microwave photonic system that produces microwave signals with ultralow phase noise using a high-quality-factor optical energy storage element. This type of oscillator is desired in various practical applications, such as communication links, signal processing, radar, metrology, radio astronomy, and reference clock distribution. Recently, new mode control and selection methods based on Fourier domain mode-locking and parity-time symmetry have been proposed and experimentally demonstrated in OEOs, which overcomes the long-existing mode building time and mode selection problems in a traditional OEO. Due to these mode control and selection methods, continuously chirped microwave waveforms can be generated directly from the OEO cavity and single-mode operation can be achieved without the need of ultranarrowband filters, which are not possible in a traditional OEO. Integrated OEOs with a compact size and low power consumption have also been demonstrated, which are key steps toward a new generation of compact and versatile OEOs for demanding applications. We review recent progress in the field of OEOs, with particular attention to new mode control and selection methods, as well as chip-scale integration of OEOs.

Tengfei Hao, Yanzhong Liu, Jian Tang, Qizhuang Cen, Wei Li, Ninghua Zhu, Yitang Dai, José Capmany, Jianping Yao, Ming Li. Recent advances in optoelectronic oscillators[J]. Advanced Photonics, 2020, 2(4): 044001.

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