In this paper, a neuromorphic reservoir computing (RC) system with enhanced memory capacity (MC) based on a vertical-cavity surface-emitting laser (VCSEL) subject to double optical feedbacks (DOF) is proposed and investigated numerically. The aim of this study is to explore the MC of the proposed system. For the purpose of comparison, the MC of the VCSEL-based RC system with single optical feedback (SOF) is also taken into account. It is found that, compared with the VCSEL-based RC system subject to SOF, enhanced MC can be obtained for the VCSEL-based RC system with DOF. Besides, the effects of feedback strength, injected strength, frequency detuning as well as injection current on the MC of the VCSEL-based RC system with DOF are considered. Moreover, the influence of feedback delays is also carefully examined. Thus, such proposed VCSEL-based RC system with DOF provides a prospect for the further development of the neuromorphic photonic system based on RC.
机构:
State Key Laboratory of Integrated Service Networks, Xidian UniversityState Key Laboratory of Integrated Service Networks, Xidian University
Xingxing GUO
Shuiying XIANG
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State Key Laboratory of Integrated Service Networks, Xidian University
State Key Discipline Laboratory of Wide Bandgap Semiconductor Technology,School of Microelectronics, Xidian UniversityState Key Laboratory of Integrated Service Networks, Xidian University
Shuiying XIANG
Yahui ZHANG
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State Key Laboratory of Integrated Service Networks, Xidian UniversityState Key Laboratory of Integrated Service Networks, Xidian University
Yahui ZHANG
Aijun WEN
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机构:
State Key Laboratory of Integrated Service Networks, Xidian UniversityState Key Laboratory of Integrated Service Networks, Xidian University
Aijun WEN
Yue HAO
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机构:
State Key Discipline Laboratory of Wide Bandgap Semiconductor Technology,School of Microelectronics, Xidian UniversityState Key Laboratory of Integrated Service Networks, Xidian University