Optical computing based storage and computing device and optical computing apparatus
By using phase change materials and multimode interference units in optical computing devices, the energy consumption problem of parameter storage and computation in large model inference tasks of optical computing devices is solved, realizing low-energy parameter storage and complex computation, and improving the efficiency of optical computing.
CN122157730APending Publication Date: 2026-06-05张江国家实验室
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- 张江国家实验室
- Filing Date
- 2024-12-04
- Publication Date
- 2026-06-05
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Figure CN122157730A_ABST
Abstract
The present disclosure provides an optical computing based storage and operation device and an optical computing device. The storage and operation device comprises one or more phase shift units, each configured to apply a phase shift amount to a corresponding optical signal to shift the phase of the optical signal, wherein the phase shift unit comprises a phase change material configured to maintain a refractive index unchanged in case that an external excitation applied thereto is reduced or removed, and the applied phase shift amount is determined by the refractive index of the phase change material; and one or more multimode interference units, each configured to cause a corresponding plurality of input optical signals to perform multimode interference to generate a plurality of output optical signals, wherein at least one of the plurality of input optical signals is an optical signal shifted in phase via a corresponding phase shift unit.
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