Infrared Polarization-Encoding QKD Teaching System
Keywords:
Infrared Polarization-Encoding QKD Teaching System
Product Overview
The Infrared Quantum Key Distribution (QKD) Principle Teaching Device is a specialized instrument designed for quantum information education. Based on the BB84 protocol and employing polarization encoding, this teaching device features a series of experiments that are carefully crafted to reflect the workflow and key technologies of quantum key distribution protocols, thereby helping students enhance both their theoretical understanding and hands-on skills. The product’s components are individually packaged and can be freely combined, making it easy to operate and intuitively straightforward. It is widely suitable for science popularization and teaching in middle and higher education institutions.
Product Parameters
Overall machine technical specifications
| Serial number | Parameter Name | Performance parameters |
| 1 | Encoding method | Polarization coding |
| 2 | Protocol Type | BB84 protocol |
| 3 | Wavelength | 1550 ± 1 nm |
| 4 | Security key generation rate | ≥4 kbps at 0 km |
| 5 | Average bit error rate | ≤3% |
| 6 | Operating frequency | ≥5 MHz |
| 7 | Number of lasers | 4 of them |
| 8 | Number of optical modules | ≥12 units |
| 9 | Software Features | Supports laser trigger control, delayed scanning, QKD transmission, key output, and other functions. |
| 10 | Note | The extended version can be optionally equipped with the B92 protocol. |
Experimental Content
| Serial number | Experiment Name | Example of experimental results |
| 1 | 1. Beam splitter testing experiment; 2. Fixed Attenuator Testing Experiment; 3. Polarization Beam Splitter Test Experiment; 4. Polarization Controller Test Experiment; 5. Attenuator calibration test. |
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| 2 | 1. Single-photon calibration; 2. Measurement of SPD detection efficiency; |
|
| 3 | 1. BB84 protocol experiment; 2. Quantum state preparation based on polarization-encoded QKD protocol; 3. Polarization decoding based on the polarization-encoded QKD protocol; |
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| 4 | 1. Key distribution process data processing experiment; | |
| 5 | 1. System maximum transmission distance test experiment. |
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Landline: +86-551-63637001
Tel: +86-13514953141
Address: No. 2800, Innovation Avenue, High-Tech Zone, Hefei City, Anhui Province, Innovation Industrial Park Phase II, E2-901/902
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