Affiliation:
1. Institute of Semiconductors
2. University of Chinese Academy of Sciences
3. China Information and Communication Technologies Group Corporation (CICT)
4. Huazhong University of Science and Technology
5. Beijing University of Posts and Telecommunications
6. Peng Cheng Laboratory
Abstract
As a photonic-based microwave signal generation method, the optoelectronic oscillator (OEO) has the potential of meeting the increasing demand of practical applications for high frequency, broadband tunability and ultra-low phase noise. However, conventional OEO systems implemented with discrete optoelectronic devices have a bulky size and low reliability, which extremely limits their practical applications. In this paper, a hybrid-integrated wideband tunable OEO with low phase noise is proposed and experimentally demonstrated. The proposed hybrid integrated OEO achieves a high integration level by first integrating a laser chip with a silicon photonic chip, and then connecting the silicon photonic chip with electronic chips through wire-bonding to microstrip lines. A compact fiber ring and an yttrium iron garnet filter are also adopted for high-Q factor and frequency tuning, respectively. The integrated OEO exhibits a low phase noise of -128.04 dBc/Hz @ 10 kHz for an oscillation frequency of 10 GHz. A wideband tuning range from 3 GHz to 18 GHz is also obtained, covering the entire C, X, and Ku bands. Our work demonstrates an effective way to achieve compact high-performance OEO based on hybrid integration, and has great potential in a wide range of applications such as modern radar, wireless communication, and electronic warfare systems.
Funder
National Natural Science Foundation of China
Beijing Municipal Natural Science Foundation
China Postdoctoral Science Foundation
Chinese Academy of Sciences through Strategic Priority Research Program
Subject
Atomic and Molecular Physics, and Optics
Cited by
1 articles.
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