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High-fidelity and large-scale reconfigurable photonic processor for NISQ applications
Optics Express
|October 15, 2022
Summary
We developed a reconfigurable linear optical network for quantum information processing using multimode fiber and programmable wavefront shaping. This device achieves high fidelity (93%) with low loss (6.5dB) for up to 38 outputs, demonstrating robust performance for real-world applications.
Area of Science:
- Quantum information science
- Photonics and optical engineering
Background:
- Reconfigurable linear optical networks are crucial for advancing quantum information processing (QIP).
- Current platforms require innovative designs for scalability and practical implementation in the Noisy Intermediate-Scale Quantum (NISQ) era.
Purpose of the Study:
- To implement a novel reconfigurable linear optical network for QIP.
- To demonstrate its capabilities in the classical regime with high performance metrics.
Main Methods:
- Utilized mode mixing in a multimode fiber.
- Employed programmable wavefront shaping with a Spatial Light Modulator (SLM).
- Integrated the device into a standard server rack for practical deployment.
Main Results:
- Achieved high fidelities exceeding 93% for up to 8 inputs and 38 outputs.
- Demonstrated low insertion losses below 6.5dB.
- Confirmed consistent performance for 2x8 circuits over 10 days without recalibration.
Conclusions:
- The developed device offers a scalable and robust solution for reconfigurable optical networks.
- The innovative design combining multimode fiber and SLM shows promise for future QIP platforms.
- The platform's stability and performance metrics support its suitability for real-world applications.
