Parity-time-symmetric optoelectronic oscillator based on reversed traveling-wave modulation

Jinying Fan; Jianming Zhou; Xudong Wang; Jiejun Zhang; Jianpeng Yao

doi:10.1117/12.2600594

9 October 2021 Parity-time-symmetric optoelectronic oscillator based on reversed traveling-wave modulation

Jinying Fan, Jianming Zhou, Xudong Wang, Jiejun Zhang, Jianpeng Yao

Proceedings Volume 11906, Infrared, Millimeter-Wave, and Terahertz Technologies VIII; 119060B (2021) https://doi.org/10.1117/12.2600594
Event: SPIE/COS Photonics Asia, 2021, Nantong, JS, China

Abstract

Microwave signal with high frequency and low phase noise is generated based on a parity-time (PT) symmetric optoelectronic oscillator (OEO). The PT-symmetric OEO based on normal and reversed traveling-wave modulation is formed by normal and reversed modulation in a travelling-wave intensity modulator (IM) using the radio-fiber (RF) input and termination ports. Gain and loss balance can be realized to achieve PT symmetry thanks to the different modulation efficiencies for microwave signals applied via different RF ports. The operation of the proposed OEO has been experimentally verified. A microwave signal is generated at 10 GHz with a phase noise of -110.7 dBc/Hz at an offset frequency of 10 kHz and a sideband suppression ratio of 46.46 dB. The approach has potential applications in high-quality microwave signal generation and simplify the structure of PT-symmetric OEO system.

Conference Presentation

Citation Download Citation

Jinying Fan, Jianming Zhou, Xudong Wang, Jiejun Zhang, and Jianpeng Yao "Parity-time-symmetric optoelectronic oscillator based on reversed traveling-wave modulation", Proc. SPIE 11906, Infrared, Millimeter-Wave, and Terahertz Technologies VIII, 119060B (9 October 2021); https://doi.org/10.1117/12.2600594

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