Time Tagger Q425 is a dual width PXIe module. It provides eight time-tagging inputs and a ninth input for the frame counter, which can be used to extend long counts and to track an additional time base. The clock is locked to the 100MHz differential PXIe clock. The time-tags can be gated via the PXI trigger lines. Data are returned over the PCIe bus to the main system memory and are accessible via an API.
| Features | Time Tagger Q425 provides digital timing resolution down to 0.5ps | |
| Applications | Photon Timing, QKD, Quantum computing, single-photon spectroscopy | |
| Specifications | Parameter | Value |
| Power | Triple | +3.3V, +5V +12 V from PXIe |
| Time-tagger Inputs | Voltage Type | 0.5-5V pulse |
| Resolution | 0.5ps | |
| Total tag rate | 500 Megatags/s | |
| Maximum burst channel tag rate | 125 Megatags/s | |
| Dead time | 4ns | |
| Precision | 5ps rms single channel | |
| Number | 8 Continuous timing inputs and 1 synchronisation or frame counter for extending long counts | |
| Clock Sources | Differential | 100MHz PXIe bus clock |
| Single-ended | SMA 50Ω terminated | |
| Reference Output | Single-ended | SMA, 1.5V into 50Ω |
| Trigger Input | PXIe trigger | Trigger 0-7 or can be star configuration |
| Connectors | External synch | SMB positive pin. Max 5V ≤10MHz |
| PCIe (XJ3 and XJ4) | 8 lane gen 3 PCIe | |
| Clock | 100MHz PXIe back plane clock | |
| Pulses | 8x SMA 50Ω terminated | |
| Dimensions (WxHxD) | 160 x 100 x 33 mm | |
| Weight | 300 g | |
| Storage Temp | -55 to 100 C | |
| Operating Temp | -40 to 85 C |
InGaAs Single photon detector AD300
With integrated counter. InGaAs, 1100 nm – 1600 nm. PDE 1-22%. DCR: from 100 cps.
Single photon detector AD200 Silicon
With integrated counter. Si, 400 – 1100 nm. PDE 40-45% at 852nm. DCR: 25 @ -20C, typical.
Laser Frequency Stabilisation for Compact Quantum Systems G200
laser stabilisation, incl. line and offset-lock
Time Tagger Q420
Time Tagger Q400 is a PCIe ¾ length card that works within an x64 Linux computer. Four count inputs and a fifth input for a frame or synchronisation input.