首页|Pixelated non-volatile programmable photonic integrated circuits with 20-level intermediate states

Pixelated non-volatile programmable photonic integrated circuits with 20-level intermediate states

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Multi-level programmable photonic integrated circuits(PICs)and optical metasurfaces have gained widespread attention in many fields,such as neuromorphic photonics,optical communications,and quantum information.In this paper,we propose pixelated programmable Si3N4 PICs with record-high 20-level intermediate states at 785 nm wavelength.Such flexibility in phase or amplitude modulation is achieved by a programmable Sb2S3 matrix,the footprint of whose elements can be as small as 1.2 μm,limited only by the optical diffraction limit of an in-house developed pulsed laser writing system.We believe our work lays the foundation for laser-writing ultra-high-level(20 levels and even more)programmable photonic systems and metasurfaces based on phase change materials,which could catalyze diverse applications such as programmable neuromorphic photonics,biosensing,optical computing,photonic quantum computing,and reconfigurable metasurfaces.

programmable photonic integrated circuitsphase change materialsmulti-level intermediate statesmetasurfaces

Wenyu Chen、Shiyuan Liu、Jinlong Zhu

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State Key Laboratory of Intelligent Manufacturing Equipment and Technology,Huazhong University of Science and Technology,Wuhan 430074,People's Republic of China

Optics Valley Laboratory,Wuhan,Hubei 430074,People's Republic of China

National Nature Science Foundation of ChinaNational Nature Science Foundation of ChinaNational Key Research and Development Program of China2021 Postdoctoral Innovation Research Plan of Hubei Province

52175509521305042017YFF02047050106100226

2024

10.1088/2631-7990/ad2c60

极端制造(英文)

极端制造(英文)

CSTPCDEI
ISSN：
年,卷(期)：2024.6(3)
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