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Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source
Published on: April 4, 2017
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Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source
Jeffrey A Steidle1, Michael L Fanto2, Stefan F Preble3
1Microsystems Engineering, Rochester Institute of Technology; jas2518@rit.edu.
Journal of Visualized Experiments : Jove
|April 28, 2017
Summary
This study details the creation of a silicon quantum photonic chip. Researchers achieved high-fidelity photon generation and interference by minimizing signal loss using specialized fiber optic coupling techniques.
Area of Science:
- Quantum Information Science
- Integrated Photonics
- Materials Science
Background:
- Silicon photonic chips offer a scalable platform for quantum information processing.
- Integrated quantum circuits require minimizing photon loss for high fidelity.
Purpose of the Study:
- To present the preparation and testing of a silicon photonic quantum chip.
- To demonstrate low-loss coupling for high-fidelity photon generation and interference.
Main Methods:
- Utilized ultra-high numerical aperture (UHNA) fiber for low-loss edge coupling to silicon waveguides.
- Optimized fusion splicing to interface UHNA fiber with standard single-mode fiber.
- Integrated a single-photon source and a two-photon interferometer on a silicon chip.
Main Results:
- Achieved high-fidelity photon production from an integrated silicon ring resonator.
- Demonstrated high-fidelity two-photon interference using a Mach-Zehnder interferometer.
- Established procedures for low-loss coupling crucial for integrated quantum circuits.
Conclusions:
- Low-loss coupling is essential for high-performance silicon quantum photonic circuits.
- The presented methods enable the development of scalable integrated quantum technologies.
- This work provides a foundation for advanced silicon-based quantum information processing.
