CPDS-1000 (50 MHz)
The correlated photon detection system (CDPS) consists of multiple telecom-band fiber coupled single-photon detectors (SPDs) gated at up to 50 MHz followed by electronic processing. The system is ideal for measuring entangled light as it compiles statistics including singles counts and correlations between the various detectors and it can store raw data from the detectors for off-line processing. The SPD signals can be delayed before correlation to account for different fiber lengths between the detectors. Product is also available in 1.25 GHZ - CPDS-2000.
Basic Features
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Product Specifications
| Attribute | Value | Units | Comments |
|---|---|---|---|
| Number of Detectors | 2 or 4 | -2 or -4 Suffix on model number | |
| Photon Detection Efficiency | 20 | % | For each detector |
| After-Pulse Probability | {1, 4} | % | at {10, 50} MHz gate rates |
| Dark-Count Probability | 4ยท10-5 | Per gate | |
| Gate Temporal-Location Resolution | 80 | ps | 50 MHz input clock |
| Detection Temporal Window | ~350 | ps | |
| Input Clock | 1 | V | |
| Correlation Delay | 0-65,000 | clock cycles | Up to 13 ms arrival time difference between photons (50 MHz clock) |
| Clock Rate | 50 | MHz | Nominal value (user specified) |
| Form Factor | Standard 3U 19" rack mountable box |
Typical Applications
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Product Photo & Diagram
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