Abstract

We present a simple approach based on photonic reservoir computing (P-RC) for modulation format identification (MFI) in optical fiber communications. Here an optically injected semiconductor laser with self-delay feedback is trained with the representative features from the asynchronous amplitude histograms of modulation signals. Numerical simulations are conducted for three widely used modulation formats (on–off keying, differential phase-shift keying, and quadrature amplitude modulation) for various transmission situations where the optical signal-to-noise ratio varies from 12 to 26 dB, the chromatic dispersion varies from -500 to 500 ps/nm, and the differential group delay varies from 0 to 20 ps. Under these situations, final simulation results demonstrate that this technique can efficiently identify all those modulation formats with an accuracy of >95% after optimizing the control parameters of the P-RC layer such as the injection strength, feedback strength, bias current, and frequency detuning. The proposed technique utilizes very simple devices and thus offers a resource-efficient alternative approach to MFI.

补充资料

DOI：10.1364/PRJ.409114

所属栏目：Research Articles

基金项目：National Natural Science Foundation of China10.13039/501100001809; Program for Guangdong Introducing Innovative and Enterpreneurial Teams; Program for the Top Young Academic Leaders of High Learning Institutions of Shanxi; National Cryptography Development Fund; China Postdoctoral Science Foundation10.13039/501100002858; Natural Science Foundation of Shanxi Province10.13039/501100004480; STCSM; Project of Key Laboratory of Radar Imaging and Microwave Photonics (Nanjing University of Aeronautics and Astronautics), Ministry of Education;

收稿日期：2020-09-09

录用日期：2020-11-13

网络出版日期：2020-11-18

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联系人作者：Pu Li(lipu8603@126.com)

备注：National Natural Science Foundation of China10.13039/501100001809; Program for Guangdong Introducing Innovative and Enterpreneurial Teams; Program for the Top Young Academic Leaders of High Learning Institutions of Shanxi; National Cryptography Development Fund; China Postdoctoral Science Foundation10.13039/501100002858; Natural Science Foundation of Shanxi Province10.13039/501100004480; STCSM; Project of Key Laboratory of Radar Imaging and Microwave Photonics (Nanjing University of Aeronautics and Astronautics), Ministry of Education;

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引用该论文

Qiang Cai, Ya Guo, Pu Li, Adonis Bogris, K. Alan Shore, Yamei Zhang, and Yuncai Wang, "Modulation format identification in fiber communications using single dynamical node-based photonic reservoir computing," Photonics Research 9(1), B1 (2021)