Optical phased array device

By introducing a beam processing lens into the optical phased array device, expanding the exit angle of the detection beam, the problem of small longitudinal scanning angle of the existing optical phased array device is solved, and a larger scanning angle and a more concentrated primary energy output are achieved, which is suitable for long-distance ranging and communication.

CN119668000APending Publication Date: 2025-03-21HUAZHONG UNIV OF SCI & TECH +1
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Patent Information

Application Number
CN202510031471.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-01-09
Publication Date
2025-03-21

AI Technical Summary

Technical Problem

The longitudinal scanning angle of the existing optical phased array devices is small and cannot meet the actual use needs.

Method used

By introducing a beam processing lens into the optical phased array device, the beam convergence lens and the beam divergence lens are used to expand the exit angle of the detection beam to achieve a larger scanning angle.

Benefits of technology

The scanning angle of the optical phased array device is expanded to meet the actual usage needs, while ensuring the concentration of the output beam energy, which facilitates long-distance ranging and communication.

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Abstract

The invention provides an optical phased array device, and the device comprises an optical phased array chip which is used for emitting a first detection light beam; the light beam processing lens is used for receiving the first detection light beam and emitting a second detection light beam to a to-be-detected object based on the first detection light beam; wherein the emergent angle of the second detection light beam is larger than that of the first detection light beam. According to the optical phased array device provided by the invention, the integrated optical waveguide phased array has a relatively large scanning angle in a wavelength range of 50nm, and meanwhile, a very small emergent light divergence angle is ensured, that is, the energy of an emergent light beam is concentrated while the scanning angle is expanded, so that long-distance ranging, communication and the like are facilitated.
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